13 four-cylinder Porsches that make the most of small engines
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fThink of a Porsche engine, and your mind likely immediately goes to one of the company's flat-six mills. Whether air or liquid cooled, naturally aspirated or turbocharged, these are the powerplants that the brand remains famous for. However, the company's engineers have shown impressive skill at developing other engine layouts, too, particularly four cylinders.

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