First rear wheel drive car: 1901 Curved Dash Oldsmobile
First sucessful front wheel drive car: The 1934 Citroen Traction Avant
First full time 4wd system: 1903 Spyker 4WD-hill climb racer
First American 4×4: 1911 Badger-Four Wheel Drive auto company
*AWD(all wheel drive) is the same thing as full time four wheel drive. AWD is believed to be just a marketing term for certain types of vehicles.*
A tachometer is a device used to measure engine speed. If your visiting this website and did not know that you have a long way to go before becoming a true gearhead. The tachometer has been around for nearly 200 years now. A German engineer by the name of Dietrich Uhlhorn is rumored to be the inventor. He used a tachometer that was driven by centrifugal force on machines around 1817. Since 1840 trains have used tachometers. I would also like to know when the first monster tach with giant shift light was first used.