I agree with Andy that K1 Speed Carlsbad is a great place to get the adrenaline running. And all you guys bashing K1 Speed: Have you even been into a K1 and raced on their tracks? I've checked out Pole Position, Dromo and Miramar and they just don't cut it. The service is mediocre, the excitement isn't there and they just aren't as clean or nice inside. Maybe you should back your comments up with better material.
I checked out this indoor race track for the first time recently and was pretty impressed. The interiors were amazing and I spent a while looking at all of the artwork and memorabilia. The staff was all very helpful as well and courteous to the people in my party. I'd definitely recommend this location others and plan on checking out their track in Carlsbad too.