SR (acronym for Speed Runner) is a Kartcross vehicle. Its original design was made in the Netherlands and then bought by Athanasoulas Rally Team (ART). It was then developed and adapted to the Greek conditions. From 2016 it is produced exclusively by ART, in Loutraki. It is a vehicle that can be used on any type of surface (gravel, asphalt, mud, snow) with minor changes in geometry and suspension adjustment, and the right tires.

Its tubular metal frame, approved by the Hellenic MotorSport Federation for its safety, is combined with a 600 or 750 cc motorcycle engine. Its power is from 125 to 150 horsepower while the drive is transfered to the rear wheels via a 6-speed sequential transmission.

SR Kartcross is the ideal vehicle for those who want WRC performance at a reasonable price and maintenance cost.