Coupé-cabriolets tested - specifications

 Ferrari CaliforniaMercedes SL350BMW Z4Mazda MX-5
On the road price/total as tested£143,870/£199,374£66,905/£78,945£44,220/£50,050£22,730/£23,140
Residual value (after 3yrs/36,000) N/a£26,294/39.3%£21,358/48.3%£9,524/41.9%
Annual tax liability std/higher rate£10,071/£20,142£4,550/£9,099£2,742/£5,483£1,182/£2,364
Annual fuel cost* (12k/20k miles)£2,980/£ 4,967£2,212/£3,687£2,050/£3,417£1,798/£2,997
Ins. grp./quote/road tax band/costn/a/n/a/M/£43550/£1,345/L/£42543/£1,384/K/£24526E/£503/J/£235
Length/wheelbase4,563/2,670mm4,582/2,560mm4,239/2,496mm4,020/2,330mm
Height/width1,308/1,902mm1,298/1,820mm1,291/1,511mm1,255/1,720mm
EngineV8/4,297ccV6/3,498cc6cyl in line/2,979cc4cyl in line/1,999cc
Peak power 453/7,750 bhp/rpm311/6,500 bhp/rpm335/5,900 bhp/rpm157/6,700 bhp/rpm
Peak torque 485/5,000 Nm/rpm360/4,900 Nm/rpm450/1,500 Nm/rpm180/5,000 Nm/rpm
Transmission 7-spd dual-clutch/rwd7-spd auto/rwd7-spd DCT/rwd6-spd auto/rwd
Fuel tank capacity/spare wheel78 litres/foam80 litres/foam55 litres/runflat50 litres/space saver
Boot capacity (roof up/down) 340/240 litres339/235 litres310/180 litres150/150 litres
Kerbweight1735kg1,825kg1,600kg1,111kg
Turning circle/drag coefficientN/A/0.32Cd11.0 metres/0.30Cd10.0 metres/0.35Cd9.4 metres/N/A
Basic warranty (miles)/recovery4yrs (unltd)/4yrs3yrs (unltd)/30yrs3yrs (unltd)/3yrs 3yrs (60,000)/3yrs
Service intervals/UK dealers12,500 miles/16 Variable/136Variable/15412,000 miles/173
Roof folding time: down/up17.4/16.8 secs17.5/19.2 secs23.9/24.3 secs15.2/17.6 secs
0-62mphUnder 4 secs6.2 secs4.8 secs8.9 secs
Top speed193mph155mph155mph121mph
Noise with roof up: 30/70mph66/72dB60/68dB68/72dB67.0/72dB
Govt urban/extra-urban/comb econ N/A/N/A/21.6mpg20.5/39.2/29.1mpg22.4/40.9/31.4mpg25.9/46.3/35.8mpg
Claimed CO2/tax bracket306g/km/35%226/g/km/34%210g/km/31%188g/km/26%
Airbags/front/rear parking sensorsFour/£901/yesSix/£605**/£605**Six/£605**/£605**Six/£646/£646^
Climate control/heated seats/IsofixYes/yes/yesYes/yes/yesYes/£285/yesYes/yes/no
Cruise ctrl/active dampers/met paint £641/£3,132/yesYes/£1,440/yesNo/yes/yesYes/no/£410
Pop-up roll bars/wind deflectorYes/yesYes/yesYes/£210No/yes
Satellite navigation/aux inYes/£540Yes/yes£2,180/yes£1,085^/yes

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