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This giveaway closed on Sep 22, 2026. The details are kept for reference;see live giveaways like it.
2021 Chevrolet Corvette giveaway from WhistlinDiesel
Photo: WD Auto Supply

WhistlinDiesel giveaway

2021 Chevrolet Corvette

$70,000
What you'd owe in tax if you win
Closed Sep 22, 2026
Free entry by mail

Official rules archived Sep 20. No purchase necessary.

Prize value
$70,000
Paid entries
1 entry per $1
Free mail-in
50 entries
Free entry worth
$50
Drawing
~Sep 29

How to enter

Buy entries

1 entry per $1

  • Bonus windows multiply entries 10x to 30x
  • Doesn't count: Entries based on pre-tax purchase amount, excluding shipping/handling, less discounts.

Free entry

50 entries per card

  • 3" x 5" card or paper inside a #10 business envelope
  • Mail by Sep 22, 2026
  • Same entries would cost $50 to buy
Step-by-step mail-in
Never miss a deadlineFree email alerts when new car giveaways open and 48 hours before they close.Get free alerts

No purchase necessary

How to enter free by mail

Second-checked Sep 20
MAIL BYSEP 222026

Mail by Sep 22, 2026

Sep 22

Postmarked by Sep 22, and it must arrive by Sep 28.

Write on the card

  1. 1full name
  2. 2complete mailing address
  3. 3phone number
  4. 4date of birth
  5. 5email address

Mail to

WD Auto Supply SweepstakesPO Box 469Macedon, NY 14502-0469

Exactly as printed in the rules. A different address can void the entry.

The mail piece

What to mail
3" x 5" card or paper inside a #10 business envelope
Each mail-in is worth
50 entries
Card writing
Handwritten only
Envelope writing
Handwritten only
Written by you personally
Required
Cut printer paper
Allowed
One entry per envelope
Each envelope mailed separately
Return address
Not stated in rules
Metered postage
Not stated in rules

Worked example

A mocked-up entry built from this giveaway's rules, with made-up details. Match the layout, not the ink color, unless one is specified.

Card · 3" x 5"

John Doe

123 Main Street

(555) 555-5555

01/01/1990

john.doe@example.com

Handwritten only · cut printer paper OK

Envelope

John Doe

123 Main Street

Anytown, ST 12345

Forever stamp

WD Auto Supply Sweepstakes

PO Box 469

Macedon, NY 14502-0469

Write the bonus multiplier that …

Handwritten only

The mark in the bottom-left corner is an example from this giveaway's rules. Check the sponsor's site before writing any of them, since booster windows are sponsor-announced and change.

What you'll need

Supplies guide
  • 3 x 5 index cardsThe size most mail-in rules ask for. A 500-pack costs a few cents a card.Amazon
  • #10 envelopesStandard business size; fits a folded or flat 3 x 5 card. Buy security-tint so the card isn't visible.Amazon
  • Black gel pensSome rules require black ink, and legible handwriting is what gets a card counted.Amazon
  • Envelope moistenerA sponge-tip moistener seals a stack of envelopes in minutes.Amazon

Forever stamps are cheapest at the post office or usps.com.

Extra entries on the same card

  • Write the bonus multiplier that is live on wdautosupply.com on the day of your postmark on the BACK of the envelope (for example 30X).

    The mail-in is worth 500 to 1,500 entries instead of 50. At 30X it is worth 1,500.

    Risk: If the multiplier you write does not match the bonus period on the postmark date, the entry is disqualified. Writing nothing is safe and earns 50.

    Show the rules' wording

    “In order for bonus entries to be valid, the Entrant must write the corresponding multiplier on the backside of the envelope to signify what Bonus Entry Period they are entering during.”

What it costs, and what it's worth

Per mail-in
$0.86
stamp and materials
Per entry, mailed
$0.0173
Per entry, bought
$1.00
One mail-in equals
$50
in purchases; $3.00 at the top multiplier
Read the mail-in paragraph from the official rules
From the official rules
“2. V ia Mail - During the Sweepstakes Period, Entrants can obtain Sweepstakes entries by legible hand-printing, on a 3”x 5” card or paper, their full name, complete mailing address, phone number, date of birth, email address, and mailing the card in a #10 business-sized envelope, with proper postage affixed, to: WD Auto Supply Sweepstakes PO Box 469 Macedon, NY 14502-0469. All entries must be postmarked by September 22, 2026 and received by September 28, 2026. Each mail-in entry received will be worth fifty (50) Sweepstakes entries. If a mail-in entry is postmarked during a Bonus Entry Period, it will be worth between five hundred (500) and one thousand five hundred (1,500) Sweepstakes entries depending on the level of Bonus Period defined by Sponsor at the Website. In order for bonus entries to be valid, the Entrant must write the corresponding multiplier on the backside of the envelope to signify what Bonus Entry Period they are entering during. If an Entrant lists a Bonus Period that is inaccurate with the postmark date, the entry will be disqualified.”

From the fine print

What the rules say

17 notes

Disqualifiers8

Any one of these can void an entry or a win.

  • If the bonus multiplier hand-written on the back of the envelope doesn't match the actual postmark date, the whole entry is disqualified.

    Show the rules' wording· How to Enter, mail-in

    “If an Entrant lists a Bonus Period that is inaccurate with the postmark date, the entry will be disqualified.”

  • Card and envelope must be hand-printed by the entrant only; no 3rd-party organization may assist.

    Show the rules' wording· How to Enter, mail-in NOTE

    “Mail-in entry card and envelope must be hand-printed by the Entrant only. In addition, Entrants are not permitted to use any 3rd party organization to assist with the entry process in any way (as determined by the Administrator).”

  • Each envelope must be mailed individually; bulk shipments of multiple entries together are not accepted.

    Show the rules' wording· How to Enter, mail-in NOTE

    “Each Envelope must be mailed individually. Bulk shipments of entries will not be accepted.”

  • No mechanically reproduced or automated-device entries allowed; all such entries are void.

    Show the rules' wording· How to Enter, purchase section

    “The use of automated entry devices is prohibited, and no mechanically reproduced entries are allowed; all such entries are void.”

  • Entries submitted through a commercial subscription or entering-service site are declared invalid.

    Show the rules' wording· How to Enter

    “commercial Sweepstakes subscription notification and/or entering service sites, will be declared invalid and disqualified for this Sweepstakes.”

  • Winner must have a valid US or Canadian driver's license to take delivery, or the prize may be forfeited to an alternate winner.

    Show the rules' wording· Prize section

    “The Winner must have proof of a valid USA or Canada driver’s license from his/her state/province of residence to take delivery of vehicle; failure to show same may result in Prize forfeiture and selection of an alternate Winner.”

  • Potential winner must sign and return the Affidavit within 7 days of notice or forfeit the prize.

    Show the rules' wording· Additional Prize Conditions

    “The potential Winner must sign and return to the Administrator, within seven (7) days of the date of notice or attempted notice is sent, an Affidavit of Eligibility, Liability & Publicity (if USA resident) or a Declaration of Compliance (if Canadian resident) in order to claim the Prize.”

  • If the sponsor can't reach the winner within 3 business days of the first notification attempt, they're disqualified and an alternate winner is picked.

    Show the rules' wording· Additional Prize Conditions

    “if a potential Winner cannot be reached or does not comply with notification instructions within three (3) business days from the first notification attempt, if a potential Winner fails to return requisite document(s) within the specified time period, or if a potential Winner is not in compliance with these Official Rules, then such person shall be disqualified”

Advantages3

Things in the rules that work in your favor.

  • Mail-in entries also get the Bonus Entry Period multiplier: 500-1,500 entries instead of the normal 50, if postmarked during a bonus window.

    Show the rules' wording· How to Enter, mail-in

    “it will be worth between five hundred (500) and one thousand five hundred (1,500) Sweepstakes entries depending on the level of Bonus Period defined by Sponsor at the Website.”

  • If you're physically unable to complete the card yourself, exactly one other person may hand-print it and the envelope on your behalf with your info.

    Show the rules' wording· How to Enter, mail-in NOTE

    “If you are unable to physically complete the 3” x 5” card, you can have someone other than yourself (not more than 1 person) hand print the 3” x 5” card and #10 envelope on your behalf with your information as the entrant.”

  • No stated cap on how many separate mail-in envelopes one person can send (each must be mailed individually, not in bulk).

    Show the rules' wording· How to Enter, mail-in

    “Each mail-in entry received will be worth fifty (50) Sweepstakes entries.”

Timing2

  • As of today (Sep 20, 2026, two days before the Sep 22 postmark deadline), the sponsor's own site config shows the live Bonus Entry Period multiplier set to 30 — the maximum of the rules' 10-30x range. A mail-in postmarked now (with '30X' written on the envelope) should be worth the full 1,500 entries instead of the base 50.

    Show the rules' wording· wdautosupply.com homepage theme config

    “giveaway_name: 'WD7', entry_multiplier: 30 , entry_multiplier_subscription: 75 , entry_multiplier_custom: 0”

  • On 2026-09-20 the WD store config showed a site-wide entry multiplier of 30, the top of the range in the rules. Re-check the site on the day you mail before writing a multiplier on the envelope.

    Show the rules' wording· wdautosupply.com home page, inline theme config

    “giveaway_name: 'WD7', entry_multiplier: 30”

Costs1

  • Winner pays all optional equipment, title, license, insurance, registration fees, taxes, and travel/transportation costs to collect the vehicle.

    Show the rules' wording· Prize section

    “The Winner will be responsible for all optional equipment, title, license, insurance and registration fees required in claiming the vehicle, applicable taxes, as well as, all other expenses relating to the use of vehicle, including any travel and transportation costs associated with collecting the vehicle.”

Oddities3

  • The site's promo disclaimer claims entrants must be a 'licensed driver as of 8/8/2026' to enter, but the formal ELIGIBILITY section never requires a license to enter — only to take delivery if you win.

    Show the rules' wording· page footer disclaimer

    “Must be age of majority in state/province of residence and licensed driver as of 8/8/2026 EST.”

  • Rules say the Prize 'will be delivered to Winner AS IS' but elsewhere make the winner responsible for travel/transportation costs to collect the vehicle — unclear if it ships or must be picked up.

    Show the rules' wording· Prize section

    “Prize will be delivered to Winner “AS IS.””

  • The store sells entry packs at 200X, 300X and 500X, far above the 10 to 30 entries per dollar the rules describe. The mail-in bonus is still capped at 1,500.

    Show the rules' wording· wdautosupply.com home page

    “5000 Entries 200X”

Entering free by mail?What to buy, what the rules allow, and how to keep the cost of a card under a dollar.Mail-in supplies guide

What you win

Prize

Grand Prize

1 winner
  • 2021 Chevrolet Corvette$70,000
Value per winner
$70,000
Cash instead
Not offered
Delivery
Not stated in rules
Travel paid by sponsor
No
Taxes
Winner responsible for all local, state and federal taxes; prize value is taxable income and a 1099 will be filed.
Winner must respond within
Not stated in rules
Winner contacted by
phone, email, mail
To claim the prize
  • Sign an affidavit
  • Return a W-9
  • Show a driver's license

Who can enter, and when

Eligibility and dates

Minimum age
18+
Where
US and CA
Excluded
US-HI, US-PR, CA-QC
Driver's license
Not stated in rules
Past winners
No exclusion stated
Opens
Aug 8, 2026
Closes
Sep 22, 2026
Drawing
On or about Sep 29, 2026
Time zone
America/New_York
Administrator
American Sweepstakes & Promotion Co., Inc.

Before you enter

Is WhistlinDiesel legit?

What the public record shows. We list facts with sources rather than a rating, so you can judge.

  • 6 giveaways on record, the earliest from Aug 8, 2026
  • 5 published winners
  • Latest: KURT GORHAM won C6 Z06, announced Dec 9, 2025
  • A state business registration exists for the company named in the rules
  • Drawings administered by American Sweepstakes & Promotion Co., Inc
Full WhistlinDiesel profile: every giveaway, winner and company

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2021 Chevrolet Corvette giveaway: FAQ

How do I enter the WhistlinDiesel 2021 Chevrolet Corvette giveaway for free?

Mail 3" x 5" card or paper inside a #10 business envelope to WD Auto Supply Sweepstakes, PO Box 469, Macedon, NY 14502-0469, postmarked by Sep 22, 2026 and received by Sep 28, 2026. Each mail-in is worth 50 entries, the same as $50 in purchases. Follow the exact card and envelope rules on this page; a missing field can void the entry.

When does the 2021 Chevrolet Corvette giveaway end?

Entries close Sep 22, 2026. The drawing is on or about Sep 29, 2026.

How much is the 2021 Chevrolet Corvette giveaway worth?

The official rules put the approximate retail value at $70,000. Prizes are taxable income at their value, so the winner owes income tax on it.

How many entries do you get per dollar?

The base rate is 1 entry per $1. During bonus windows WhistlinDiesel multiplies entries 10x to 30x.

Who can enter?

Entrants must be 18 or older and live in US or CA. Excluded: US-HI, US-PR, CA-QC.

Has anyone actually won a WhistlinDiesel giveaway?

Yes. WhistlinDiesel has published 5 winners that we have recorded with links to each announcement, most recently KURT GORHAM (C6 Z06).

Details on this page come from the official rules retrieved Sep 20, 2026 and second-checked Sep 20, 2026. If anything differs, the official rules govern. Report an error.