BMW has revealed the first official details and pictures of the new M4 Convertible; the drop-top version of the new M4 Coupe. Pictures are above. The details? There are many.
Then there's BMW's take on the Mercedes ‘air scarf', here labelled ‘Air Collar'. It's a fan mounted between the head-rest and upper seat bolster to keep your neck warm when the roof's down.
The whole car is 60kg lighter than the outgoing, V8-engined BMW M3 Convertible, though still clocks the scale at a not-inconsiderable 1,750kg - the standard M4 Coupe weighs 1500kg - despite the liberal use of aluminium (the bonnet, front wings and some chassis components), along with carbon-fibre reinforced plastic for the propeller shaft and strut brace.
There's nothing liberal about the engine, mind. It's the same twin-turbocharged, 3.0-litre straight-six as the new M4 Coupe and M3 Saloon, producing the same 431bhp and 406lb ft of torque.
Obviously that weight penalty means there's a mild performance deficit: 0-62mph in this Convertible M4 takes 4.6 seconds with the standard-fit manual gearbox (4.3s for the Coupe), or 4.4s with the optional, £2,645 dual-clutch auto transmission (4.1s for the Coupe). Should you care about such things, BMW claims 32.5mpg and 203g/km of CO2 for this auto box. The manual gearbox fares a little worse.
You get an active differential, DSC - including an M dynamic mode - and adaptive M suspension with three modes (Comfort, Sport and Sport+), though there's no mention of the Coupe's Smokey Burnout function. Yes, that's a real Thing.
Inside there are electrically adjustable heated leather seats, an M steering wheel, individual rear seats, and some boot space: 370 litres with the roof closed, 220 litres with it open/stowed. Outside there are 19in wheels, that ‘powerdome' bonnet, a really shouty front apron, side gills and air breathers and of course, the quad exhaust pipes.
Prices start at £60,730, and it'll go on sale in the UK on 6 September 2014. Want one?