HPI 1/10 RS4 Sport 3 1987 Warsteiner BMW E30 Electric RC Touring Car

The adjustable double bell crank system, anchored by a robust metal drag link plate, empowers you to tailor Ackermann angles for superior handling and confidence-inspiring control at any speed.

The suspension of the RS4 Sport 3 uses the race-proven double-wishbone suspension design, similar to a full-scale modern race car. You'll be able to control the anti-squat and anti-dive of the front and rear arms using the standard pivot blocks, and the option parts allow you to adjust the sweep and toe angles. You'll also be able to easily change the roll centre front and rear with the racing-style vertical ball stud mounting on both the inner and outer camber link mounts. Multiple shock mounting positions provide a full range of shock suspension angle adjustment to suit different road conditions.

The adjustable height body mounts let you fit any 1/10th scale touring car body from HPI Racing to the RS4 Sport 3 chassis. All you need to do is adjust the front, and rear body mounts to allow the wheels and chassis elements to fit properly underneath the body. Body pins hold the mounts in place, and the multiple mounting hole positions allow you to fine-tune the exact body fitment.

The rear hub is fitted with a vertical ball stud style adjustment that allows easy rear roll centre adjustment. Moving the ball stud up or down with the optional spacers changes the traction characteristics of the rear end as the car goes through the turns. The suspension arm also features three different shock mounting holes for easy shock angle adjustment.

One of the ways we gave the RS4 Sport 3 the best possible handling was to make sure all the components fit as low as possible in the chassis. This gives the car an amazingly low centre of gravity for enhanced cornering capabilities.

Unlike traditional plastic tub chassis, which utilise multiple parts and can flex under stress, this one-piece chassis offers superior rigidity and torsional stability. This translates to improved handling precision and responsiveness on the track.