Facts and figures
Audi RS6 Avant vs Mercedes E63 AMG Estate
| Audi RS6 Avant | Mercedes E63 AMG Estate | |
| On the road price/total as tested | £76,985/£101,020 | £75,535/£75,535 |
| Residual value (after 3yrs/36,000) | £36,260/47.1% | £34,595/45.8% |
| Depreciation | £40,725 | £40,940 |
| Annual tax liability std/higher rate | £5,326/£10,653 | £5,225/£10,450 |
| Annual fuel cost (12k/20k miles) | £4,383/£7,304 | £4,310/£7,183 |
| Ins. group/quote/road tax band/cost | 48/£1,446/L/£475 | 47/£1,437/L/£475 |
| Cost of 1st/2nd/3rd service | £450/£600/£450 | 3yrs @ £45pcm |
| Length/wheelbase | 4,979/2,915mm | 4,905/2,874mm |
| Height/width | 1,461/1,936mm | 1,507/1,854mm |
| Engine | V8/3,993cc | V8/5,461cc |
| Peak power/revs | 552/5,700 bhp/rpm | 557/5,500 bhp/rpm |
| Peak torque/revs | 700/1,750 Nm/rpm | 720/1,750 Nm/rpm |
| Transmission | 8-spd S Tronic/4WD | 7-spd auto/rwd |
| Fuel tank capacity/spare wheel | 75 litres/sealant | 80 litres/space-s’r |
| Boot capacity | 565/1,680 litres | 695/1,950 litres |
| Kerbweight/payload/towing weight | 1,935/630/2,100kg | 1,955/585kg/N/A |
| Turning circle/drag coefficient | 11.9 metres | 11.3 metres |
| Basic warranty (miles)/recovery | 3yrs (60k)/3yrs | 3yrs (u’td)/3yrs |
| Service intervals/UK dealers | Variable/121 | Variable/136 |
| Driver Power manufacturer/dealer pos. | 10th/18th^ | 5th/10th^ |
| Euro NCAP: Adult/child/ped./stars | N/A | N/A |
| 0-60/30-70mph | 3.7/3.0 secs* | 4.5/3.5 secs* |
| 30-50mph in 3rd/4th | 2.1/2.8 secs | 2.3/3.3 secs |
| 50-70mph in 5th/6th/7th/8th | 3.3/4.8 secs | 4.3/6.0 secs |
| Top speed/rpm at 70mph | 7.0/11.5 secs | N/A/N/A |
| Braking 70-0/60-0/30-0mph | 155mph/1,800rpm | 155mph/1,800rpm |
| Noise outside/idle/30/70mph | 47.4/35.0/8.8m | 47.9/35.6/9.2m |
| Auto Express econ (mpg/mpl)/range | 17.8/4.0/294 miles | 18.1/4.0/319 miles |
| Govt urban/extra-urban/combined | 20.3/37.7/28.8mpg | 20.3/36.2/28.3mpg |
| Govt urban/extra-urban/combined | 4.5/8.4/6.4mpl | 4.5/8.0/6.3mpl |
| Actual/claimed CO2/tax bracket | 367/229g/km/35% | 361/234g/km/35% |
| Airbags/Isofix/rear parking sensors | Six/yes/yes | Seven/yes/yes |
| Automatic box/stability/cruise control | Yes/yes/yes | Yes/yes/yes |
| Climate control/leather/heated seats | Yes/yes/yes | Yes/LED/yes |
| Met. paint/xenon lights/wind deflector | yes/yes/yes | Yes/yes/yes |
| Sat-nav/USB connection/Bluetooth | Yes/yes/yes | Yes/yes/yes |
