> Looking for the Latest in I-6 Engine > Design, I came upon the GM 4200 > 4.2 Litre Inline Six - all aluminum > Twin Cam EFi butt Kicker 270HP > nastie .
I'm not sure how the GM 4200 counts as anything special... The BMW 3.8 Litre Inline Six cranks 340 pony's in US spec and close to 380 in Euro trim......
Of course BMW haven't managed to cure their warping/cracking head design even given the 30 odd years they've been working on it!