For the ultra high performance R500, we realised that to get the best performance out of the car, the driver would need a shift light. Of all the products we tested, the ACES SureShift system provided by far the best performance.
I have driven the car [with the lights set] at full brightness, which works well in strong sunlight. You can look where you are going (which is important when you're going so quickly) and not directly at the shift lights. Night use is also good. Comments from the test pilots (drivers) have all been complimentary. The engine accelerates so quickly at high rpm's that the tacho is redundant.
Furthermore, we are fitting the system to an increasing number of cars.
[Chris Jobburn - Caterham Production Engineer]