Subsequent service consisted of brake work, reupholstering the cabin in black leather, replacing the headliner, and changing the spark plugs. The car is powered by a 3. 0-liter M189 inline-six paired with a three-speed automatic transmission, and it wears a repaint in silver. Equipment includes mechanical fuel injection, 15â³ steel wheels, chromed wheel covers, a wood-covered dashboard, a Becker AM radio, an electric clock, and a heater. The Type 300 models were built on an X-shaped ovoid tubular chassis that was carried through to the 300d, which featured a wheelbase 4â³ longer than the earlier models. Bubbled paint, overspray, cracked light lenses, cracked weatherstripping, and signs of corrosion on the chrome are noted. This was not due to any fault with the vehicle. The winnerâs participation on BaT has been restricted and their buyerâs fee was not refunded. The 15â³ steel wheels feature slotted chrome covers and are mounted with Cooper Trendsetter SE tires. The W189 models feature independent suspension up front with a swing axle out back and an electronically activated torsion-bar load-leveling adjustment controlled by a dashboard-mounted switch.