Ken Block. Gymkhana. Hoonicorn. RS4 Sport 3. Fully detailed replica. That’s all you need to know. Still want more? The thrilling and amazing 1965 Ford Mustang Hoonicorn RTR is arguably the star of the latest Ken Block Gymkhana video, and you can get an authentic 1/10th scale replica version on the latest HPI on-road 4WD chassis, the RS4 Sport 3. The model car even features custom fifteen52 R43 wheels and perfectly scale Pirelli P Zero tires under the flared wheel arches, plus an enclosed full-time 4WD shaft drivetrain with coilover shocks and independent double-wishbone suspension for awesome driving action – all fully built and ready to drive right out of the box!