I want to build my car to compete in road racing. I've been dooing alot of research lately trying to get as much info as possible so I can plan the build of my car. I've been having a hard time finding a clear answer on some of the downsides of the 1g's design. I am NOT talking about anything that has to do with the engine ( theres tons of facts as well as opinions on that ), but I am interested in finding out the weak points of the other areas of the car. Here's what I have so far: - The chassis flexes alot and needs to be made more rigid. Obviously a roll cage is a good way to correct this as well as strut braces. I've also read that there is a type of foam or epoxy or something that can be injected into the chasis to stiffen it up (I've read a few threads on this and am still debating whether or not its worth it. maybe someone who's had experiance with it can comment.) - The 2g suspension is a better design than the 1g. I'm not sure exactly what makes it better (still have alot to learn about suspension). Is it that the 1g's suspension is a bad design, or is it just not as good as the 2g's? - The open differential in the front kills us with understeer. A Quafe differential solves that, but I'd like to know what your guys opinion is on changing the center differential as well. - The 1GA's have those puny mickey mouse brakes in the front (mine are already changed to 3000gt's) - The car is a pig by nature, weight is a problem. Is there anything else that you guys can come up with? I'm hoping for all the road racers to share there personal experiance in this. What have you guys noticed are the weaknesses of a 1g car for road racing?