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Originally Posted by davester
DTM at Bathurst in the dry 1min 58sec.
Based on 1987 VL Commodore qual at Spa 2m42.53sec (dry??)
2005 DTM MB practice Spa 2m13.65sec (dry)
Difference factor 82.2%
Same spec 1987 VL Commodore qual Bathurst 2m23.6sec (dry)
2005 DTM MB (Commodore x 0.822) Bathrust 1m58sec (thereabout)
Assumptions: 1987 WTC Qual at Spa was dry.
This is not scientific, merely a reference point.
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WTCC cars lap within a second or two of Super Tourers, maybe a little more at the longer Spa circuit, so use that as a bench mark.
WTCC cars are 20 seconds a lap slower than DTM cars at Spa.