In this head to head, we compare three Mezger-powered Porsche 997 GT cars with a combined 1,346 naturally aspirated horsepower, and totaling over $1M in combined market value. The question is... do you get what you pay for?

2007 Porsche 911 GT3 (997.1)
Engine: 3.6L H6 409hp 299 lb-ft
Curb weight (as specced): ~3120 lbs

2010 Porsche 911 GT3 RS (997.2)
Engine: 3.8L H6 444hp 317 lb-ft
Curb weight (as specced): ~3070 lbs

2011 Porsche 911 GT3 RS 4.0 (997.2)
Engine: 4.0L H6 493hp 339 lb-ft
Curb weight (as specced): ~3030 lbs

See how these cars rank in my Zygrene Performance Index: https://tinyurl.com/zpindex

00:00 Intro
01:25 997.1 GT3
08:44 997.2 GT3 RS 3.8
18:04 997.2 GT3 RS 4.0

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