Hello,
I'm new to the luxury class of cars. I have done a little research on my own and well I have always liked BMW (tho I enjoyed test driving a 98 Saab). At the moment I need to buy a new car, and considering buying a BMW but cost is a object.

..
I have seen alot of ads in the Auto Trader (car buyer mag) for 318 Series. What is the difference in 318i, 318iS etc. If I had all the money in the world I think i would buy a M3, but all i can afford lower end on the scale.
I have also seen a few ads for 320i but only a few.
I know that the 318 Series is a 4 cyl. (1.8L) engine, while the 320 (2.0L), 325 (2.5L), etc,
Should I hold out in buying a car, or .. What do you guys things. Please, I need your help..
Thank you.