[Tongue Pirate]

The SPF car is pretty much a roller. All you need to add is the Motor & Tranny & you're on the road. The other two you mentioned are kits that you can build from the ground up & in some instances, if you choose, have others do the work for you. The FFR car can be very budget friendly because you can use a donor car for your drivetrain & running gear or you can mix in custom parts to your liking. I'm not real familiar with the B&B cars. The Bodies on all three cars are all different in shape.