This is the new range-topping BMW Z4, launched today at the Detroit motor show.
The snappily titled Z4 sDrive 35is gets a 335bhp version of the 3.0-litre straight six, with an overboost function increasing torque from 332lb ft to 369lb ft. And the 332lb ft is available from just 1400rpm, which should give the car the torque characteristics of a big diesel.
That gives the Z4 performance to closely match the M3 and M5; it hits 62mph in 4.8sec. As with all BMWs, top speed is limited to 155mph. Transmission is a seven-speed double-clutch unit.
The car also has the sound to match its performance. BMW describes its specially developed exhaust, which features sound flaps and modifications to the silencers, as giving "powerful acoustic feedback".
The new model makes use of Efficient Dynamics tech, including brake enegy regeneration and electric power steering, to average 31.4mpg, and it emits 210g/km of CO2.
The car also gets an M Sports Package and M suspension as standard, which lowers the car by 10mm, and retuned electric steering. Exterior trim changes include new front and rear lower bumpers and a new style of 18-inch alloys. Regardless of the exterior colour of the car, it will always be supplied with silver mirror caps.