Ripping up the rule book - specifications

 BMW X6 xDRIVE 35dPorsche Cayenne Diesel
On the road price/total as tested£44,535/£54,260£39,404/£45,019
Residual value (after 3yrs/36,000)£22,401/50.3%N/A
Annual tax liability std/higher rate£3,117/£6,235£2,758/£5,517
Annual fuel cost (12k/20k miles)£2,393/£3,988£2,648/£4,414
Ins. grp./quote/road tax band/cost47/£698/F/£210N/A/N/A/G/£400
Cost of 1st/2nd/3rd service£995^N/A
Engine6cyl in-line/2,993ccV6/2,967cc
Peak power 282/4,400 bhp/rpm237/4,000 bhp/rpm
Peak torque 580/1,750 Nm/rpm550/2,000 Nm/rpm
Transmission 6-spd auto/4wd6-spd Tiptronic/4wd
Fuel tank capacity/spare wheel85 litres/run flats100 litres/foam
Boot capacity (seats up/down) 570/1,450 litres540/1,770 litres
Turning circle/drag coefficient10.4 metres/0.33Cd12.0 metres/0.35Cd
Basic warranty (miles)/recovery3yrs (unltd)/3yrs2yrs (unltd)/2yrs
Service intervals/UK dealersVariable/15320,000 miles/34
Driver Power manufacturer/dealer pos.6th/12th4th/5th
Euro NCAP: Adult/child/ped./pointsN/AN/A
0-60/30-70mph6.8/7.2 secs7.4/7.2 secs
30-50mph in kickdown 3.0 secs2.9 secs
50-70mph in kickdown 4.0 secs4.3 secs
Top speed/rpm at 70mph 147mph/2,000rpm133mph/2,100rpm
Braking 70-0/60-0/30-0mph 47.0/34.0/8.6m51.0/37.0/9.5m*
Noise levels outside/idle/30/70mph65/45/58/67dB67/43/58/66dB
Auto Express economy/range22.8mpg/426 miles20.6mpg/453 miles
Govt urban/extra-urban/combined 26.9/36.8/34.0mpg24.4/35.8/30.4mpg
Actual/claimed CO2/tax bracket332/220g/km/35%367/244g/km/35%
Airbags/Isofix/parking sensorsTen/yes/yesSix/yes/£527
Air-suspension/tow bar£2,250**/£600£1,931/£442
Power-fold mirrors/heated seats£235/£295Yes/£407
Sat-nav/aux-in/cruise control£1,805/yes/yes£2,048/£74/£287
Xenon lights/powered tailgateYes/£380£1,016/£415

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