The E60 M5, a legendary sports sedan, is known for its potent V10 engine and impressive performance. But just how fast can this beast go without the factory speed limiter? This article delves into the topic of the E60 M5’s top speed potential when unrestricted.
The factory-imposed speed limiter on most E60 M5s restricts the top speed to around 155 mph (250 km/h). This limitation is implemented for safety reasons and to comply with tire speed ratings. However, many M5 owners are curious about the true top speed capabilities of their cars without this electronic restriction.
Several factors influence the E60 M5’s top speed without the limiter. The most crucial is the car’s gearing. The E60 M5 has a seven-speed SMG transmission. Some drivers report achieving speeds around 175 mph in 6th gear before reaching the rev limiter, suggesting that 7th gear might allow for an even higher velocity if the limiter were removed.
Removing the speed limiter typically requires a software modification, often done through a remap or ECU tune by specialized performance tuners like DMS. With the limiter removed and optimal conditions, the E60 M5 is estimated to be capable of reaching speeds in excess of 190 mph (305 km/h). However, achieving such speeds requires a safe and controlled environment, such as a closed track or a professional top speed event like those held at Bruntingthorpe Proving Ground in the UK.
It’s important to note that achieving these high speeds can be dangerous and should only be attempted by experienced drivers in a controlled setting. Furthermore, deactivating the speed limiter may void certain warranties or insurance policies. Always check with the relevant authorities and service providers before making any modifications to your vehicle.
Beyond simply removing the limiter, other modifications can further enhance the E60 M5’s top speed potential. These include:
- Aerodynamic enhancements: Reducing drag with modifications like spoilers or underbody panels can improve high-speed stability and top speed.
- Performance tires: High-speed rated tires are essential for safely operating at speeds above the factory limit. These tires are designed to handle the increased heat and stress generated at these velocities.
- Engine tuning: While the stock V10 is already powerful, further tuning and modifications can extract even more horsepower and torque, contributing to a higher potential top speed.
Concluding, the E60 M5’s top speed without the limiter is significantly higher than the factory-restricted 155 mph. While estimates suggest a potential top speed exceeding 190 mph, various factors, including modifications and environmental conditions, play a role in the actual achievable speed. Pursuing these extreme speeds requires careful consideration of safety and legal implications.
