The 2013 F10 M5 with its 4.4L V8 S63Tu turbo engine has previously been shown to be underrated from the factory, which is BMW’s habit with its official quote power figures.
The latest results showing this come from iND who have just begun performance testing on their F10 M5. The result was 527 RWHP (rear wheel horsepower) on a totally stock F10 M5 running on pump gas and dyno’d on a dynojet. This represents just a 6% drivetrain loss.
The M5′s S63tu V8 runs a higher compression at 10.0:1 (@ 22 PSI), compared to the X5M/X6M S63 engine’s 9.3:1 (@ 17 PSI).
Here are the results of Sport Auto’s comparison test among the M5 F10, Panamera Turbo S, and E63 AMG Performance Package. The M5 doesn’t come out on top in the raw number categories, but still gets the nod from Sport Auto for its handling and overall dynamic package.
1st place: BMW M5 – 620 hp on the dyno (claimed: 560)
Tires: Michelin Pilot Supersport
Weight: 1963 kg
0-100 km/h (62 mph): 4.3 s
0-200 km/h (124 mph): 13.0 s
Flexibility (80-120 km/h) (50-75 mph) in 5th/6th gear: 4.5 s/5.6 s
Flexibility (80-180 km/h) (50-75 mph) in 5th/6th gear: 12.2 s/15.3 s
18 m slalom: 66.3 km/h
Braking (100-0 km/h) (62-0 mph), warm: 37.5 m
Braking (200-0 km/h) (124-0 mph), warm: 150.0 m
Laptime (Kleiner Kurs Hockenheim): 1:13.6 … CONTINUED