What does the red and green "R" stand for?

 

Stop and go. As in, as soon as you mash the go pedal, you're going to need to stand on the stop pedal.

I honestly have no idea, though. I'd guess they're the colors of some historical racing livery?

 

Race inspired I suppose.

or......vRoom? Really special? Really fast? Really Expensive? Really badass? getting Really hot chicks. tRemendous.

 

In the XKR, the go pedal is also known as the exhilarator.

 

Google it. R for 'Race' tuned (ECU, blower, suspension, body interior etc.) S for sport tuned (ECU, suspension, body) GT, grand touring (ECU, suspension, body, interior etc.)

Oh yeah, add more $$$ for each level.

 

Just noticed mine is peeling..quick search on fleebay and £11 squid later have a new one arriving

 

There used to be a day when the race versions of cars were street legal.

R literally meant R, as in go compete in international competition with an R model.

These days it's just a badge to denote it is faster than a non R.