BMW shows smaller can be beau­ti­ful and fast

Yorkshire Post - Motoring - - FRONT PAGE - Fred­eric Manby

BMW S fab­u­lous next M3 will no longer thrill with the roar of a V8. The 4-litre en­gine is re­placed with a twin turbo straight six 3-litre, the first turbo in the model se­ries.

With 425bhp it beats the V8 s fig­ure, while its torque of 405 lb ft is an ex­tra 110 lb ft. It is 80kg lighter and gives a 25 per cent im­prove­ment in mileage and CO2 emis­sions. Both the M3 four-door sa­loon and the M4 coupe have a carbon- plas­tic roof to save weight and lower the roll cen­tre.

The mod­els are dense with tech­ni­cal im­prove­ments. The fa­mous six-cylin­der en­gine gets a forged, lighter, high torque ca­pac­ity crank­shaft. It re­duces ro­tat­ing masses, re­sult­ing in im­proved throt­tle re­sponse and ac­cel­er­a­tion.

Here’s Al­bert Bier­mann, head of de­vel­op­ment at BMW M di­vi­sion: “The way in which we chan­nel the in­flow­ing air through the en­gine oil cooler cre­ates a ven­turi ef­fect, which re­duces front axle lift and, in so do­ing, im­proves the steer­ing.”

Both cars can sprint to 62mph in 4.3 sec­onds, im­prov­ing to 4.1 sec­onds with an op­tional twin clutch au­to­matic gear­box. Top speed: a mun­dane 155mph un­less you get the re­stric­tors re­moved. Econ­omy: 32mpg (34mpg auto). Emis­sions: 204g/km CO2 (194g auto). Show­room launch: June 21, prices: M3 sa­loon £55,500; M4 coupe £55,960.

PACKED WITH TECH: The new BMW M4 coupe.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.