The latest Porsche 911 GT3 is a big step up from its predecessor, but what about the 991.2 GT3 RS? Can it get close to that more extreme older model's Rockingham time? Sam gets that 4.0-litre flat-six working...

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00:01 Porsche 911 GT3 driven
00:45 Driving on track, specs, handling
04:02 Porsche 911 GT3 engine noise
04:25 Porsche 911 GT3 lap
05:46 Laptime and result

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