Detroit-based tuner previews 710-hp BMW M4-based coupe

The Mamba GT3 can reach 60 mph from a stop in about three seconds.

A Detroit-based tuner called Hoffy Automobiles has published a batch of computer-generated images that preview the Mamba GT3 Street.

Named after a venemous snake, the Mamba GT3 takes the form of an aggressive-looking coupe based on the BMW M4. It gains a completely redesigned front end with numerous air vents and LED lights, fender flares that put even DTM cars to shame, a wide air diffuser with four integrated four exhaust pipes, and a trunk-mounted wing that's almost as tall as the roof. The only remaining visual connections between the GT3 and the M4 are twin kidney grilles and the shape of the lights.

Hoffy promises the cabin has been upgraded with sport seats for the front passengers, Alcantara upholstery on the seats, the headliner, and the steering wheel, a heads-up display inspired by the world of jet fighters, Bluetooth connectivity, and a Wi-Fi hotspot. It also features a 600-watt sound system.

The M4's twin-turbocharged 3.0-liter straight-six engine has been tweaked to deliver 710 horsepower, a 285-pony bump over the M4. The coupe can reach 60 mph from a stop in approximately three seconds, and it goes on to a top speed of 210 mph.

The Mamba GT3 Street Concept will be introduced to the public in February, and it will go on sale shortly after. Pricing information hasn't been revealed, though that hasn't stopped a wealthy collector from buying the very first prototype.

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