BMW 507 Series
Source: BMW Blog  http://www.bmwblog.com/2015/12/08/top-five-topless-bmws/
"Powered by a 3.2 liter V8, that developed 148 hp, mated to a four-speed manual, the BMW 507 was one of the coolest cars of its time. Unfortunately, the BMW 507 was too expensive to make and too expensive to buy, so it didn’t last very long and almost bankrupt BMW."  Photo 1 of 47 in Dwell On Wheels by Stephen Blake

Dwell On Wheels

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BMW 507 Series
Source: BMW Blog www.bmwblog.com/201...

"Powered by a 3.2 liter V8, that developed 148 hp, mated to a four-speed manual, the BMW 507 was one of the coolest cars of its time. Unfortunately, the BMW 507 was too expensive to make and too expensive to buy, so it didn’t last very long and almost bankrupt BMW."