Heres an extarct from an article from the BMW UK site, it just goes to show that you cant go wrong with a BMW.....
BMW has established three new records while scooping top honours in the International Engine of the Year awards with the 5.0-litre V10 unit from the new M5
The 507bhp powerplant of the BMW M5 and forthcoming M6 Coupé won the overall Engine of the Year award for 2005, with a panel of judges from around the world praising the engine’s flexibility, high revving nature (the engine can rev to 8,250rpm) and sublime power. The 4,999cc unit was a clear winner of the overall title with the V10 engine’s stiffest competition coming from the 3.0-litre twin-turbo diesel engine that powers the BMW 535d. That engine took second place overall.
BMW is the only manufacturer to have ever been awarded a total of six category wins in a single year and its overall tally of 26 awards now means the company has achieved more first place trophies than any other engine manufacturer in the history of the competition. The 3.2-litre engine from the BMW M3 took top honours in its category for the fifth time in succession, another record for the Engine of the Year awards.