1st would be Audi TDI (great diesel engine, one of Ward's best engine for 09 - front wheel drive is a letdown)
then 3series 320d (ima fan of diesel variant);
then IS 300, rear engine drive, great design, best overall form japan in terms of workmanship, newcomer in our market (save for the grey market ones),
last would be the C-Class (im still young and i think i wouldn't define me as i am.)