BMW 6 Series vs M635 CSi - specifications
| BMW 640d | BMW M635 Csi | |
|---|---|---|
| On the road price/total as tested | £66,745/£80,080 | £33,875 (1984)/N/A |
| Residual value (after 3yrs/36k miles) | £33,873/50.8% | N/A |
| Depreciation | £32,872 | N/A |
| Annual tax liability std/higher rate | £2,929/£5,857 | N/A |
| Annual fuel cost (12k/20k miles) | £2,045/£3,409 | £2,521/£4,201 |
| Insurance group/quote | 48/£1,106 | N/A/£744 |
| Road tax band/annual cost | F/£130 | N/A/£215 |
| Cost of 1st/2nd/3rd service | £400 (5yrs/60k) | Will vary |
| Length/wheelbase | 4,894/2,855mm | 4,755/2,625mm |
| Height/width | 1,369/1,894mm | 1,353/1,725mm |
| Engine | 6cyl in-line/2,993cc | 6cyl in-line/3,453cc |
| Peak power/revs | 309/4,400 bhp/rpm | 286/6,500 bhp/rpm |
| Peak torque/revs | 630/1,500 Nm/rpm | 334/4,500 Nm/rpm |
| Transmission | 8-spd auto/rwd | 5-spd man/rwd |
| Fuel tank capacity/spare wheel | 70 litres/run-flat | 70 litres/full-size |
| Boot capacity (seats up) | 460 litres | 335 litres |
| Kerbweight/payload | 1,715/450kg | 1,505kg/N/A |
| Turning circle/drag coefficient | 11.7 metres/0.31 Cd | 11.7 metres/0.39Cd |
| Basic warranty/recovery | 3yrs (unltd)/1yr | N/A |
| Service intervals/UK dealers | Variable miles/154 | Variable miles/154 |
| Driver Power manufacturer/dealer pos | 9th/18th | 9th/18th |
| 0-60/30-70mph | 5.4/4.8 secs | 6.3 secs/N/A |
| 30-50mph in 3rd/4th | 2.1/2.6 secs | N/A |
| 50-70mph 5th/6th/7th/8th | 3.5/4.4/5.4/7.4 secs | N/A |
| Top speed/rpm at 70mph | 155mph/1,650rpm | 158mph/N/A |
| Braking 70-0/60-0/30-0mph | 50.2/35.1/8.9m | N/A |
| Noise levels outside/idle/30/70mph | 65/41/56/65dB | N/A |
| Auto Express economy/range | 37.2mpg/573 miles | 29.1mpg/448 miles |
| Govt urban/extra-urban/combined | 42.2/58.9/51.4mpg | 17.1/36.2/29.1mpg |
| Actual/claimed CO2/tax bracket | 203/145g/km/22% | 224g/km/N/A/N/A |
| Airbags/elec windows/rear park sensors | Six/yes/yes | No/yes/no |
| Air-conditioning/leather/heated seats | Yes/yes/yes | Yes/yes/no |
| Auto gearbox/stability/cruise control | Yes/yes/yes | No/no/no |
| Metallic paint/xenon lights/keyless go | Yes/yes/yes | Yes/no/no |
| Sat-nav/USB connection/Bluetooth | Yes/yes/yes | No/no/no |
