This one won't be cheap.

In the late 1970s and early 1980s, BMW offered a unique and rare model – the mid-engine BMW M1. Production lasted four model years, and the company only ever produced 453 examples, making it a highly sought after and expensive collector's item. They don't come up for sale often, though there's a special one for sale at BringATrailer.com, and it features a unique former owner – Paul Walker.

Its association with the Walker isn't your typical ownership story, though. The car was part of the AE Performance collection Walker owned in partnership with Roger Rodas. However, its ties to Walker, the actor who played Bryan O'Connor in the Fast and Furious franchise, will certainly draw increased interest. The M1 for sale is a 1980 model that was modified after delivery, which did more than add more power. Upgrades included a custom exhaust, full-leather seat upholstery, a custom BMW Motorsport livery, and three-piece BBS wheels. That was in addition to the increase in power.

Gallery: 1980 BMW M1 For Sale

BMW used a 3.5-liter inline-six in the M1, which made 277 horsepower (206 kilowatts) from the factory. However, the AHG-tuned cars, which this M1 is, are said to make 350 hp (260 kW) thanks to a new exhaust and other engine modifications. The mill pairs with a five-speed manual transaxle and a limited-slip differential. According to the listing, the car will not pass California's emissions test.

The car currently has about 6,800 kilometers (4,200 miles) on the odometer, and it looks to be in exceptional condition. It's also surprisingly well-appointed for an early mid-engine supercar, featuring air conditioning, power seats, and a sound system. The bid sits at $350,000 as of this writing, though it's likely to sell for much higher than that. There are still nine days left in the auction, and previous examples have sold for well more than $500,000 on several occasions. Get the checkbooks ready.