We all know about M5, its really a dream car for all the BeeMerBut today I come across this beast: M55d xDrive from the BMW 5 series catalogue.Wow! Its spring from 0 to 100 km/h in just 4.7 secsWith the engine capacity just 2993ccWhile M5 is powered by 4395cc petrol engine and make it at 4.4 secs (Just 0.3 secs faster)For top speed, both are electronically limited.For fuel consumption,Definitely the oil burner beat M5 with just 6.3l/100km (M5 need 9.9l/100km)Curious why don't BMW Malaysia bring in this Top diesel model to Malaysia?