Red Letter Days offers various high-adrenaline driving experiences such as driving supercars on race tracks, off-road motorcycle and quad biking adventures, and Formula 1 racing experiences. Their experiences are led by experienced instructors and take place on famous UK tracks like Silverstone. Customer reviews praise the experiences as adrenaline-fueled, confidence-building, and a dream come true. Prices start at £97 for 2-hour quad biking to £199 for a 2-hour Formula 1 experience.