video,BMW 1-series M Coupe v Porsche Cayman R

We put BMW's baby M Car into battle with the most potent mid-engined Porsche on sale.It's 1-series M Coupe v Cayman R, with Chris Harris presenting on video below.
The vital stastics? BMW - 335bhp, 369lb ft, 0-62mph in 4.9sec,155mph top speed (limited), £40,020. Porsche - 325bhp, 273lb ft,0-62mph in 5.0sec,175mph top speed,£51,728.A few differences,then, but these are both hugely desirable two-door performance cars.Whose array of talents appeals most,though? Find out here.