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      12-03-2019, 12:47 AM   #510
Artemis
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Drives: BMW M2 Competition
Join Date: Jun 2011
Location: Belgium

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Quote:
Originally Posted by M3 Adjuster View Post
"What we do know is that it featured the six-speed manual transmission and the Michelin Pilot Sport Cup 2 tires. And the recorded times are quite interesting. Let’s start with the BMW M2 CS time as published by Auto Bild – 1:34.98 – which is just a bit over half a second faster than the M2 Competition on the same track.
According to the data sheet of that Hockenheimring test (see here):
  • the tested M2 Competition: M-DCT, weighed 1631 kg (full tank of fuel included), apparently had no M Driver's Package (because data sheet notes V-max of 250 km/u (stock: electronically limited V-max) - Parabolika speed 232 km/h), featured steel brakes (2NH M Sport Brakes), was sitting on Pilot Super Sport tires, likely on 19" 788M wheels (no info specified), and was driving in 1°C/34°F air temp + 1°C/34°F track temp and 1020 mbar air pressure;
  • the tested M2 CS: M-DCT, weighed 1588 kg (full tank of fuel included), went into 'limp mode' on its way to the finish due to low fuel (running on empty = minimum fuel weight), apparently had M Driver's Package (because data sheet notes V-max of 280 km/h (delimited V-max) - Parabolika speed 248 km/h), featured M-CCB (carbon ceramic brakes), was sitting on Cup 2 tires fitted on lightweight 19" 763M wheels, and was driving in 32°C/90°F air temp + 53°C/127°F track temp and 1015 mbar air pressure.
  • track temperature difference: 52°C/93°F (1°C/34°F vs. 53°C/127°F);
  • air temperature difference: 31°C/56°F (1°C/34°F vs. 32°C/90°F);
  • air pressure difference: 5 mbar (1020 mbar vs. 1015 mbar).
Different test environment circumstances.

Hm, judging merely by those figures, it looks like the M2 Competition - considering its setup and near freezing point test circumstances - wasn't particularly blown out of the water/ice by the better equipped and more powerful M2 CS pushed around the track in warm weather on hot asphalt.
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