L6

VIDEO: E92 BMW M3 vs. E46 BMW M3 CSL - AutoSpies Auto News
... us Tags: M3, CSL, V8, induction, L6, BMW, Motorsport. Tag Links: M3, CSL,
V8, induction, L6, BMW, Motorsport VIDEO: E92 BMW M3 vs. ...
http://www.autospies.com/news/VIDEO-E92-BMW-M3-vs-E46-BMW-M3-CSL-19772/

MOTOR TREND Says New M3 is Best Ever - AutoSpies Auto News
... bad. The new V8 is actually slightly more fuel efficient than the old L6.
I except 12-13 litre per 100 km to be a realistic figure. ...
http://www.autospies.com/news/MOTOR-TREND-Says-New-M3-is-Best-Ever-17625/