The rear suspension was more unique. As all the Japanese automotive manufactures were playing with rear steering in the mid -eighties, the RX-7 followed suite with an independent, Dynamic Tracking Suspension System with trailing arms, Triaxial floating hubs, camber control links, coil springs, and a 12 mm anti-roll bar (14 mm with the Heavy Duty suspension). Mazda claims to have applied for more than 100 patents on their Dynamic Tracking Suspension System independent rear suspension. With DTSS, the rear wheels become an active component of the steering system, changing from toe-out during low lateral force cornering to toe-in for extra stability during high lateral acceleration cornering situations and to reduce lift throttle over steer which had been a problem on the 1st generation RX-7. Similar systems were soon found on Porsche and other German manufactures vehicles.