HD: Porsche911 GT3 RS (996 MkI) vs BMW M5 E39: M5BOARD.com: http://www.m5board.com/vbulletin/e39-m5-e52-z8-discussion/135128-high-definition-porsche-911-gt3-rs-996-mk-i-vs-bmw-m5-e39.html#post1545449
BMW M5 had ECU and Kelleners exhaust.
Porsche 911 GT3 (996 Mk I) vs BMW M3 E46: http://www.m5board.com/vbulletin/e90-m3-sedan-e92-m3-coupe-e93-m3-convertible-e46-m3-e36-m3-z4-m-z4-m-coupe/132318-porsche-911-gt3-996-mk-i-vs-bmw-m3-e46-manual.html#post1513539
Porsche 911 GT3 (996 Mk I) vs BMW M3 E46 manual 50-250 km/h http://www.m5board.com/vbulletin/e90-m3-sedan-e92-m3-coupe-e93-m3-convertible-e46-m3-e36-m3-z4-m-z4-m-coupe/135712-bmw-m3-e46-coupe-6-speed-vs-porsche-911-gt3-cs-996-mk-i-50-250-km-h.html#post1552135
http://www.m5board.com/vbulletin/e90-m3-sedan-e92-m3-coupe-e93-m3-convertible-e46-m3-e36-m3-z4-m-z4-m-coupe/151095-bmw-m3-6-speed-e46-vs-porsche-911-gt3-rs-996-a.html#post1736993 Porsche 911 GT3 RS (996 Mk I) vs BMW M3 E46 6-speed
HD: Kelleners BMW M5 vs Porsche 911 GT2 (996) 50-280km/h: http://www.m5board.com/vbulletin/e60-m5-e61-m5-touring-discussion/114893-video-porsche-911-gt2-996-vs-kelleners-sport-bmw-m5.html
HD: Porsche 911 GT3 RS (997) vs BMW M6 x 2
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