Check out new M5/M6 review on Feb '06 R&T Mag

[Kewl X5]

R&T did a comparo with M5 and M6. Both will do 0-60 mph in 4.1 seconds! The M6 has a slightly higher trap speed at the 1/4 mile and the M6 will start pulling away from the M5 after 100 mph or so.

M6 is lighter and handles slightly better; M5 has room for 5 people. IMHO, M6 looks better....the M5 is the best looking 5-series.

STATS:
M5/M6 0-30 mph 1.7 seconds!
M5/M6 0-60 mph 4.1 seconds
M5 0-100 mph 9.5 sec/M6 9.2 sec
M5 0-120 mph 13.3 sec/M6 12.7 sec
1/4 mile: M5 12.4 @ 115.8 mph/M6 12.4 @ 118.1 mph

60-0 mph M5 120 ft/M6 119 ft
80-0 mph M5 207 ft/M6 209 ft

Lat accel M5 0.87 g/M6 0.88g (200 ft skidpad)
Slalom speed M5 68.9 mph/M6 69.5 mph (700 ft slalom, 100 ft spacing)

Curb weight: M5 4035 lbs/M6 3770 lbs

Both M5/M6 averaged around 11 mpg

R&T M5 vs. M6