RL or Redline is a line of Hot Wheels Wheel Types.

Image	Letter Code	Type	Years Used	Notes
	RL	Redline/Red Stripe (Type 1)	1968-1977	Used on all cars from 1968-1972 and on a few cars between 1973 and 1977
	RL2	Redline/Red Stripe (Type 2)	1973-1977	Used on most cars from 1973-1976, used on some in 1977
	RL3	Redline (Type 3)	1993-1994	Very similar to RL Type 2. Stripe is tampoed on instead of embossed.Used on Vintage Series
	RL4RLC/RLA	Red Line (Type 4), Neo-Classic Redlines	2002-present	Used on Limited-Edition cars from HotWheelsCollectors.com