Top 10 Most Powerful Four-cylinder Engines
10 (tie) – Porsche 2.5L turbo
Thanks to the few extra ponies of the newly-introduced GTS versions of the 2018 Porsche 718 Boxster/Cayman duo, this turbocharged 2497-cc four-cylinder engine barely made this top 10 list. It produces 365 horsepower and 317 pound-feet.
Porsche 718 Boxster GTS: 365 horsepower, 146.2 horsepower/litre
Porsche 718 Cayman GTS: 365 horsepower, 146.2 hp/L
Porsche 718 Boxster S: 350 horsepower, 140.2 hp/L
Porsche 718 Cayman S: 350 horsepower, 140.2 hp/L