The E60 M5 is powered by the BMW S85 V10 engine, which produces 373 kW (500 hp) at 7,750 rpm, 520 N⋅m (384 lb⋅ft) at 6,100 rpm and has a redline of 8,250 rpm. The 0–100 km/h (0–62 mph) acceleration time is 4.7 seconds  Like the original M5, the E60 M5 became the fastest sedan in the world shortly after it was launched. Only 4.5 ticks to reach 60mph, and with the 155-mph limiter removed a 2006 – 2010 BMW M5 could reach an aerodynamically-limited top speed of 205.7 mph The engine is reliable “if” maintenance is kept up. I have been running my e60 as a daily driver. I drive it hard. Its reliable, but I keep it maintained.BMW M5 Repair: Service and Maintenance Cost. The annual maintenance cost of a BMW M5 is $1,173. Repair and maintenance costs vary depending on age, mileage, location and shop.The 0-60 mph run takes a supercar-rivaling three seconds and the car will keep on accelerating up to 189 mph.