Depends on gearing, but how much does your b12 weigh? You can get a hp to weight ratio to get an idea as to how it'll perform. My B14 has a ratio of 23lbs. per hp, and it's damn slow. A BMW 325i has ratio of 18lbs per hp, and it's pretty quick. If you're b12 weighs 2200lbs(just a guess), that's a ratio of 17.6lbs per hp, which isn't bad at all.