330XI E46
One of the best normal aspired engine BMW produced, 6 in line, well balanced, mine has 250K miles still running like a champ, compression well above 180 PSI in all cylinders, AWD, works all around USA, I changed oil every 7000 miles religiously, I use syntetic always, 5W30, great car, water pump one of the weakest parts, changed every 50k miles 8