Tuner Tuesday posts usually focus on cars that have been turned up a few notches by aftermarket companies, but for some time Mercedes-Benz did all the magic internally. Indeed, if you go back to the 1920s and 1930s, Mercedes-Benz had a habit of taking the largest motor they could reliably produce and sticking it in their luxury cars. Such was where the legend of the 500 and 540K specials came from, but while the War postponed many further developments Mercedes-Benz were back at it in the W109 300SEL 6.3. Apparently not satisfied by that factory hot rod, engineers conceived its replacement with an even larger 6.9 liter V8 – mind you, in the midst of an international fuel crisis. Churning out 286 horsepower from the now legendary M100 V8, the 450SEL 6.9 was effectively a land-bound aircraft carrier and about as powerful. Long ignored by the market, the 6.9s have heated up over the past few years as large classic Mercedes-Benz models have become increasingly sought after and the rare 450SEL with the big motor is a solid draw. Today I have two examples to consider – a desirable European version and a less powerful and not quite as attractive American-spec car. Which is the one to choose?
