07 May 2014 - 10:00
Meet the most powerful M5 ever
And the '30 Jahre M5' has several other exciting performance upgrades, which add an extra seam of hooliganism on top of the newly released M5 Competition Pack.
The engine, for one, has been given a special celebratory tweak. The boost pressure on M division's twin-turbo 4.4-litre direct injection V8's been turned up, and the ECU's been adjusted to cope, so it delivers 19 more kilowatts, boosting the total output to 441kW. In other words, the most powerful production BMW ever built.
On the road, that translates to a claimed 0-100km/h time of 3.9sec, that limited 320km/h top speed, while still managing a not-terrible 9.9L/100km and CO2 emissions of 231g/km.
As per protocol, it's strictly rear-wheel drive. Power's sent via a seven-speed dual clutch gearbox, which has had a few light software upgrades to cope with the extra muscle. Which, if our maths is correct, gives the 1870kg 30 Jahre a power to weight ratio of 236kW per tonne.
Underneath, you'll find the same stuff as you would under the M5 Competition Package, so 10mm lowering springs, 20-inch wheels with 265/40 front tyres and huge 295/40s in the back.
Elsewhere, the 30 Jahre has new steering and differential software, matt silver metallic bodywork, de-chromed accents, embossed seats, and 30 Jahre badges.
BMW's being a bit humourless about where it'll be unveiled though, but the upcoming M Festival at the Nurburgring next month seems likely.
So: fastest ever M5? Or new M3? Which would you choose?