Mazda’s 221.072km/h effort over 24 hours comprehensively beat the old mark of 209.824km/h for diesel production cars with displacements between 2.0 and 2.5 litres.
Using three of its 2.2 litre SKYACTIV-D diesel-powered 6s, Mazda’s driving team kept the three sedans circulating for 24 hours with the lead car setting the record.
That team consisted of professional drivers, motoring journalists and a selection of car enthusiasts who applied to take part.
The group was evenly matched, as the other two Mazda6s weren’t far behind with just 0.89km/h average separating them after the 24 hours.
While the record is yet to be verified by the FIA, Mazda is confident its run meets all the necessary requirements for the new mark to stand.
And because the trio were circulating virtually non-stop for 24 hours, Mazda believes several other time-related speed records have also fallen to its Mazda6.
Each driver spent 90 minutes behind the wheel during a stint, paying particular attention to maintaining an average speed through the banked curves and avoiding slipstreaming (which would void the record).
The trio each covered more than 5300km during the record run.