The best engine is the one that meets your particular driving style and needs. Where I live everything is a highway drive to get to so huge HP never crossed my mind just handling and I find the M44 provides me with all of that and I have no desire for a larger engine. I have those in my American cars such as my 57 Chevy with well over 400HP and even my little 66 Mustang at 271 bone stock!! JMHO JIM