KWS-1 and the rack mounted KW-1. Sound modules are typically designed to be mounted in a 19-inch rack. Steering was by way of a toothed rack that pivoted the unsprung front wheel. FlexFix is an optional integrated bicycle rack. Mechanical changes included a strengthened steering rack and a power steering oil radiator. It uses cold water cooling through the rack doors. The steering was a rack and pinion system. It was the first Jeep vehicle to use rack and pinion steering. The lens was focused either by sliding or with a rack and pinion mechanism. The trunk was fitted with a (non-functional) luggage rack. Steering was unassisted rack and pinion. The steering was power assisted rack and pinion. Steering was of the conventional rack and pinion type. A new electric steering rack was also added. The steering featured the Variatronic power assisted rack and pinion technology.