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      06-07-2019, 08:12 PM   #5
SakhirM4
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Drives: '15 SO M4/'20 Z4 M40i
Join Date: Jul 2014
Location: Austin, TX

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2020 BMW Z4 M40i  [10.00]
2015 BMW M4  [8.76]
BMW was doing it in 1977:

The 1977 320 Turbo used a massively turbocharged 2.0-liter Formula 2 M12 powerplant. BMW figured these things to be putting out 650 hp, pretty outrageous for a four-cylinder, even today. These engines spurred on the development of BMW's turbocharged F1 cars of the 1980s, and the technological arms race that ensued is legendary.

https://www.roadandtrack.com/motorsp...ic-collection/
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