How can you make a BMW or any car faster?

I am looking to buy a new car most likely a BMW and I would like to know what are some cheap ways to give it a little more hp? I would like to buy an m3 but i dont think i will have that type of money.How can you make a BMW or any car faster?Chip it. Active autowerke claims 75 whp on the dyno for the 335i(i'm assuming that's what you're going for. If your going for the 328 then save for the 335).How can you make a BMW or any car faster?buy an aftermarket computer chip it will bump you up anywhere from 70hp to 100hp depending on how much you want to spendHow can you make a BMW or any car faster?aaaaahhhhhh better run those cars past your insurance agent and see what the premiums look like/and messing with the beemer will give you warranty problems/they run pretty well stock