The BMW M8 Competition is among the fastest and most luxurious cars BMW makes, and the Gran Coupe adds four-door practicality to the formula. This 2023 example is a low-mileage, one-owner car with a Stage 2 tune. It sits on Cars and Bids at $29,500 with six days to go.
Cars & Bids
What it’s worth right now
Steep depreciation has made the M8 a striking performance value against its lofty sticker. According to Kelley Blue Book and current listings, a 2023 M8 Competition Gran Coupe carries a fair purchase price close to $76,000, with the Cars.com nationwide average near $85,500 and dealer examples ranging into the $90,000s, against an original sticker north of $136,000.
The tune is the wrinkle in the value case. A low-mileage, one-owner car is exactly what buyers want, but the catless downpipes and Stage 2 tune narrow the pool slightly and raise emissions and warranty questions, even though the factory parts are included for reversibility. Fair value lands at $72,000 to $90,000, with $82,000 the most likely close.
Cars & Bids
Condition and details
The modifications are the headline. The car has been fitted with Evolution Racewerks catless downpipes, an RK Tunes cold-air intake, and a Bootmod3 Stage 2 tune, and the seller estimates 750 to 800 horsepower, though no dyno was provided. The factory downpipes and intake are included, so it can be returned toward stock.
Cars & Bids
The ownership and condition are strong. It is a one-owner car with a clean Carfax, described as pampered its whole life, with only some chips on the front end noted and immaculate paint. Documented dealer service is consistent through its early life.
Cars & Bids
Two practical points deserve attention. The catless downpipes may affect emissions in some states, so confirm registration where the buyer lives, and a Stage 2 tune adds stress that some buyers will want to weigh against the powertrain warranty. Obtain the dyno if possible and get a thorough inspection.
Cars & Bids
The offer
| Specification | Detail |
|---|---|
| Make | BMW |
| Model | M8 Competition Gran Coupe |
| Year | 2023 |
| Mileage | 12,600 miles |
| Engine | 4.4-liter twin-turbocharged V8 |
| Power | 617 hp and 553 lb.ft of torque stock, with a claimed 750 to 800 hp tuned |
| Transmission | 8-speed automatic |
| Drive type | All-wheel drive |
| Exterior color | Black Sapphire Metallic |
| Interior color | Black |
| Current bid | $29,500, with six days left |
Interested in this 2023 BMW M8 Competition Gran Coupe? View the listing here.
What makes the M8 unique
The M8 sits at the very top of BMW’s M lineup, the flagship that combines the brand’s most powerful engine with genuine luxury and technology. Its twin-turbocharged 4.4-liter V8 produces 617 horsepower in Competition form, driving through an eight-speed automatic and BMW’s M xDrive all-wheel-drive system, which is rear-biased for engagement and can be switched to pure rear-wheel drive. The result is a car with brutal, supercar-rivaling acceleration and immense all-weather traction, wrapped in a beautifully appointed cabin.
Cars & Bids
The Gran Coupe body makes it uniquely versatile. Where the M8 Coupe and Convertible prioritize style, the four-door Gran Coupe adds usable rear seats and everyday practicality without sacrificing the drama, giving it the presence of a grand tourer and the pace of a supercar. That blend of ferocious performance, luxury, and four-door usability is exactly what makes the M8 Competition Gran Coupe so compelling, particularly now that depreciation has placed it within far easier reach.
My take
This is an enormous amount of performance and luxury for the money, and the appeal is a low-mileage flagship at a fraction of its original price. The 617-horsepower twin-turbo V8, the M xDrive traction, and the four-door practicality make it genuinely special, and the tune adds ferocious extra power for a buyer who wants it, with the factory parts included for reversibility.
Fair value sits at $72,000 to $90,000, with $82,000 the most likely result, and the crux is the tune and catless downpipes rather than the car itself. Before bidding, confirm the emissions situation where the buyer lives, weigh the Stage 2 tune against the powertrain warranty, obtain the dyno if possible, and get a thorough inspection. Handle that, and this is a monstrously capable luxury four-door bought at a steep discount.
Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.
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About the author
Kyle Edward
Editor-in-Chief, Autoblog