Porsche Boxster S vs rivals - specifications
Porsche Boxster S vs Mercedes SLK 55 AMG vs Audi TT RS Roadster
| Porsche Boxster S | Mercedes SLK 55 AMG | Audi TT RS Roadster | |
|---|---|---|---|
| On the road price/total as tested | £45,384/£52,731 | £54,965/£63,470 | £49,180/£57,100 |
| Residual value (after 3yrs/36,000) | £25,642/56.5% | £29,406/53.5% | £25,475/51.8% |
| Depreciation | £19,742 | £25,559 | £23,705 |
| Annual tax liability std/higher rate | £2,905/£5,809 | £3,158/£6,316 | £2,885/£5,769 |
| Annual fuel cost (12k/20k miles) | £2,443/£4,072 | £2,395/£3,991 | £2,949/£4,916 |
| Ins. group/quote/road tax band/cost | 45/£1,035/K/£270 | 47/£1,119/J/£250 | 41/£758/J/£250 |
| Cost of 1st/2nd/3rd service | £480/£610/£480 | £390/£240/£390 | £42 a month/3yrs** |
| Length/wheelbase | 4,374/2,475mm | 4,134/2,430mm | 4,198/2,468mm |
| Height/width | 1,281/1,801mm | 1,301/1,810mm | 1,348/1,842mm |
| Engine | Flat 6cyl/3,436cc | V8/5,461cc | 5cyl in-line/2,480cc |
| Peak power/revs | 311/6,700 bhp/rpm | 415/6,800 bhp/rpm | 335/5,400 bhp/rpm |
| Peak torque/revs | 360/4,500 Nm/rpm | 540/4,500 Nm/rpm | 450/1,600 Nm/rpm |
| Transmission | 6-spd man/rwd | 7-spd auto/rwd | 7-spd S tronic/4wd |
| Fuel tank capacity/spare wheel | 64 litres/foam | 70 litres/foam | 60 litres/foam |
| Boot capacity (roof up/down) | 280 litres/N/A | 225/335 litres | 290 litres/N/A |
| Kerbweight/payload | 1,320/335kg | 1,690/220kg | 1,535/320kg |
| Turning circle/drag coefficient | 10.6 metres/0.31Cd | 10.5 metres/N/A | 10.7 metres/N/A |
| Basic warranty (miles)/recovery | 3yrs (unltd)/2yrs | 3yrs (unltd)/4yrs | 3yrs (60,000)/3yrs |
| Service intervals/UK dealers | 2yrs (20,000)/34 | Variable/136 | Variable/135 |
| Driver Power manufacturer/dealer pos. | 9th/5th* | 8th/10th* | 15th/26th* |
| Euro NCAP: Adult/child/ped./stars | N/A | N/A | N/A |
| 0-60/30-70mph | 4.7/4.0 secs | 4.6/3.9 secs | 4.7/4.0 secs |
| 30-50mph in 3rd/4th | 3.0/4.0 secs | 2.4/3.4 secs | 2.4/3.5 secs |
| 50-70mph in 5th/6th | 4.8/5.8 secs | 4.7/6.5 secs | 4.4/5.6 secs |
| Top speed/rpm at 70mph | 173mph/2,500rpm | 155mph/2,000rpm | 155mph***/2,000rpm |
| Braking 70-0/60-0/30-0mph | 42.0/30.9/7.8 metres | 47.1/33.6/8.5 metres | 45.2/33.3/8.5 metres |
| Auto Express econ (mpg/mpl)/range | 29.7/6.6/418 miles | 30.3/6.7/467 miles | 24.6/5.5/325 miles |
| Noise 30mph/70mph/hood down/up | 64/74/63/70dB | 64/76/63/69dB | 66/74/65/73dB |
| Govt urban/extra-urban/combined | 23.2/40.9/32.1mpg | 23.5/45.6/33.6mpg | 22.8/44.1/32.8mpg |
| Govt urban/extra-urban/combined | 5.1/9.0/7.0mpl | 5.2/10.0/7.4mpl | 5.0/9.7/7.2mpl |
| Actual/claimed CO2/tax bracket | 220/206g/km/31% | 215/195g/km/29% | 265/199g/km/30% |
| Airbags/stop-start/adaptive dampers | Six/yes/£971 | Six/yes/no | Four/no/£1,175 |
| Leather/heated/electric seats | Yes/£283/£1,291 | Yes/yes/yes | Yes/yes/£740 |
| Metallic paint/wind deflector/xenons | £558/£182/yes | Yes/yes^/yes | £510/yes/yes |
| Parking/tyre pressure sens/cruise ctrl | £348/yes/£267 | £680^^/yes/yes | £305/£75/£220 |
| Sat-nav/Bluetooth connectivity/aux-in | £2,141/£445/yes | Yes/yes/yes | £1,525/£250/yes |
