Radial Tuned Suspension 25 December 2015 08:56 Rare Spares Rare Spares (0) ShareAsk an Australian car lover who invented RTS (Radial Tuned Suspension) and the answer will be Holden. However, ask an American car lover who invented it and they would likely say Pontiac. In truth, the facts are a little hazy. In America, Radial Tuned Suspension started in the mid-70s when radial t... [More]