Porsche 911 Cabriolet vs Audi R8 Spyder - specifications

 Porsche 911 Carrera S Cabrio PDKAudi R8 Spyder 4.2 FSI
On the road price/total as tested£92,127/£98,683£96,625/£101,895
Residual value (after 3yrs/36,000)£44,037/47.8%£56,332/58.3%
Depreciation£48,090£40,293
Annual tax liability std/higher rate£5,867/£11,734£6,688/£13,376
Annual fuel cost (12k/20k miles)£3,102/£5,170£4,389/£7,315
Insurance group/road tax band/cost50/K/£27050/M/£475
Cost of 1st/2nd/3rd service£480/£610/£480£106 per month*
Length/wheelbase4,491/2,450mm4,431/2,650mm
Height/width1,292/1,808mm1,244/1,904mm
EngineFlat-six/3,800ccV8/4,163cc
Peak power/revs 395/7,400 bhp/rpm424/7,900 bhp/rpm
Peak torque/revs 440/5,600 Nm/rpm430/4,500 Nm/rpm
Transmission 7-spd PDK/rwd6-spd manual/4WD
Fuel tank capacity/spare wheel64 litres/sealant80 litres/sealant
Boot capacity 135 litres100 litres
Kerbweight/payload1,485/420kg1,660/300kg
Turning circle/drag coefficient11.1 metres/0.30Cd11.4 metres/0.34Cd
Basic warranty (miles)/recovery2yrs (unltd)/2yrs3yrs (60k)/3yrs
Service intervals/UK dealers18,000 (2yrs)/34Variable/135
Driver Power manufacturer/dealer pos.9th/5th^15th/26th^
Euro NCAP: Adult/child/ped./starsN/AN/A
0-60/30-70mph4.1/3.5 secs4.7/4.6 secs
30-50mph in 3rd/4th3.2/4.7 secs2.8/4.1 secs
50-70mph in 5th/6th5.6/7.3 secs4.9/7.0 secs
Top speed/rpm at 70mph 187mph/1,800rpm186mph/3,000rpm
Braking 70-0/60-0/30-0mph 44.1/32.4/8.0m43.6/32.3/8.2m
Noise 30/70mph roof up/down63/72/66/75dB62/72/66/75dB
Auto Express economy/range24.9mpg/351 miles17.6mpg/430 miles
Govt urban/extra-urban/combined 22.8/40.9/31.7mpg13.3/27.4/19.6mpg
Govt urban/extra-urban/combined 5.0/9.0/7.0mpl 262/210g/km/33%2.9/6.0/4.3mpl
Actual/claimed CO2/tax bracket430/337g/km/35%
Six/£121/£243
Airbags/Isofix/parking sensors£5,787/yesFour/yes/£640
Ceramic brakes/adaptive dampersYes/yes/£320£7,295/£1,380
Climate control/leather/heated seats£801/£267/yesYes/yes/yes
Metallic paint/cruise control/xenonsYes/yes/£445Yes/£220/yes
Sat-nav/USB connection/Bluetooth£1,840/£255/yes

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