claim: Levoamphetamine causes lack of focus.
evidence: Rotor Racing Cars is a Scottish based specialist manufacturer of single-seater racing cars , sports racing cars and road-going low volume sports cars .. The Rotor JT7C competed in the BRSCC Sports 2000 championship .. BRSCC. BRSCC. Sports 2000. Sports 2000. A road-going version of the original Road Going Rotor JT7 also exists .. Rotor racing cars has historically been involved with the preparation of racing cars and among other championships has competed in the Scottish Formula Ford championship , Scottish Road Saloons championship and The British GT Championship .. Scottish Formula Ford championship. Scottish Formula Ford Championship. British GT Championship. British GT Championship. The vast majority of the output of was in the 1980s with the current output being greatly reduced .. All Rotor Racing projects have been designed by Graham Millar who currently competes in the BRSCC Sports 2000 championship .. BRSCC. BRSCC. Sports 2000. Sports 2000. As of the time of writing -LRB- Summer 2014 -RRB- Rotor Racing Cars are currently building a Sports Libre hillclimb car and are involved in running a BMW Compact in the Scottish BMW Compact Cup .. Scottish BMW Compact Cup. Scottish BMW Compact Cup. It is not possible to either purchase a Rotor car or procure the services of Rotor Racing as it is a not-for-profit organisation run by enthusiasts for enthusiasts .