I like this
8-Racing DEX210 Carbon Fiber Chassis
Manufactured out of high quality carbon fiber. 8-Racing carbon fiber chassis provides a 55% decreased in overall weight of the DEX210. Chassis weight alone is 49% lighter than the standard DEX210 composite main chassis. Carbon fiber chassis also tends to offer a "softer" responsiveness which helps improves rear traction on low bite racing surfaces.
If the chassis is 49% lighter than stock, how does it make the car 55% lighter!!! That there is some magic carbon fiber!