We found news of the Hartge tuner package for the BMW M6 over at Inside Line, where that venerable automotive news site tells us a special supplementary module raises the max speed of this M6 from ...
If a regular ol' 5-series isn't nearly enough car to suit your tastes, the Hartge BMW H5S should fit the bill. A big-bore six and a whole lot of optional performance goodies turn this experience ...
A rare Hartge-specified 1988 BMW M5 is up for sale in Queensland at the moment, presented with low kilometres on the clock with genuine Hartge tuning. Back in the 1980s and ’90s, aftermarket ...