Have to throw in some Serpent love. The GT is like mentioned above a purpose built race machine. It is also insanely durable compared to some of the others. All of the drivers locally here are buying upgrades instead of spares for broken parts. Money well spent if it is feasible to you. If you see yourself getting really into racing a GT Serpent all day. No one can match the car and no one can match the support.
If you want to go Kyo get with Scary Jerry he is the man with all the tricks on that chassis. He will get you the right mods and help you with a few tips for a better performing car.
The Serpent Cobra GT and team behind it is what landed me my love of Serpent seen below.