BMW M4 vs Porsche Cayman S PDK vs Audi RS5

AutoExpress UK pits the new BMW M4 against the Porsche Cayman S PDK and Audi RS5.

A rear-wheel drive vehicle, the Porsche Cayman S is powered by a naturally aspirated 3.4 liter six-cylinder engine outputting 320 horsepower and 370 Nm of torque.  While the Cayman is not always thrown in the same category as the M4 or RS5, on paper it can be described as a competitor.

Now when it comes to the M4 and RS5, at a first glance, there are a number of commonalities and similarities between the two cars, such as the dimensions: just over two centimeters separate the two also a small difference in engine performance – only 19 hp between the counterparties.

But there are a series of major differences, starting with the all-wheel drive on the Audi RS5 while the M4 stays true to BMW’s rear-wheel drive architecture. The Audi RS5 also comes with a 4.2 liter V8 engine. The RS5’s engine makes 450 horsepower and 317 lb-ft.

Manual transmission or 7-speed DCT for the M4, only a 7-speed S tronic DCT for the RS5.

So which one takes the win?

Verdict

1st: BMW M4

Fans of fast BMWs should rejoice, because the new M4 is one of the best M cars yet. It wraps up supercar-rivalling performance in a practical four-seater body. It’s not cheap, but few cars provide as much performance per pound.

Full review here

BMW M4 Porsche Cayman S PDK Audi RS5
On-the-road price/total as tested £59,145/£67,515 £51,245/£64,751 £59,870/£62,640
Residual value (after 3yrs/30,000) £29,573/50.0% £23,316/45.5% £24,906/41.6%
Depreciation £29,573 £27,929 £34,964
Annual tax liability std/higher rate £3,634/£7,267 £3,042/£6,085 £4,129/£8,259
Annual fuel cost (12k/20k miles) £3,594/£5,990 £2,916/£4,861 £3,511/£5,851
Ins. group/quote/road tax band/cost 42/£529/J/£265 41/£466/J/£265 45/£574/L/£485
Cost of 1st/2nd/3rd service £1,000 (5yrs/50k) £480/£610/£480 £44pcm (3yrs)
Length/wheelbase 4,671/2,812mm 4,380/2,475mm 4,649/2,751mm
Height/width 1,383/1,870mm 1,295/1,801mm 1,366/1,860mm
Engine 6cyl in-line/2,979cc Flat 6cyl/3,436cc V8/4,163cc
Peak power 425/5,500 bhp/rpm 321/7,400 bhp/rpm 438/8,000 bhp/rpm
Peak torque 550/1,850 Nm/rpm 370/4,500 Nm/rpm 430/4,000 Nm/rpm
Transmission 7-spd auto/rwd 7-spd auto/rwd 7-spd auto/Awd
Fuel tank capacity/spare wheel 60 litres/sealant 64 litres/sealant 61 litres/sealant
Boot capacity (seats up/down) 445 litres/N/A 150 l front/275 l rear 455/829 litres
Kerbweight/payload 1,497/543kg 1,370/325kg 1,715/500kg
Turning circle/drag coefficient 12.2 metres/0.34Cd 11.0 metres/0.30Cd 11.6 metres/0.32Cd
Basic warranty (miles)/recovery 3yrs (unltd)/3yrs 3yrs (unltd)/3yrs 3yrs (60,000)/3yrs
Service intervals/UK dealers Variable/153 20,000 (2yrs)/36 Variable/121
Driver Power manufacturer/dealer pos. 10th/24th 6th/6th 12th/23rd
Euro NCAP: Adult/child/ped./stars N/A N/A N/A
0-60/30-70mph 4.5/3.5 secs 4.0/3.5 secs 4.4/3.6 secs
30-50mph in 3rd/4th 1.9/2.7 secs 2.8/3.7 secs 2.5/3.3 secs
50-70mph in 5th/6th/7th 3.2/4.0/6.0 secs 4.3/5.2 secs/N/A 4.6/5.7/7.7 secs
Top speed/rpm at 70mph 155mph/2,000rpm 174mph/2,000rpm 155mph/2,400rpm
Braking 70-0/60-0/30-0mph 45.3/33.3/8.3m 44.6/32.1/8.8m 46.2/33.2/8.2m
Noise levels outside/idle/30/70mph 65/49/61/68dB 65/56/68/77dB 68/45/55/68dB
Auto Express econ (mpg/mpl)/range 21.1/4.7/278 miles 26.0/5.8/366 miles 21.6/4.8/290 miles
Govt urban/extra-urban/combined 25.5/42.2/34.0mpg 24.8/44.8/34.4mpg 19.6/34.0/26.9mpg
Govt urban/extra-urban/combined 5.6/9.3/7.5mpl 5.5/9.9/7.6mpl 4.3/7.5/5.9mpl
Actual/claimed CO2/tax bracket 309/194g/km/31% 251/190g/km/30% 302/246g/km/35%
Airbags/Isofix/park sensors/camera Six/yes/yes/£330 Six/y/£348/£1,044 Six/yes/yes/£340
 Adapt. dampers/cruise/active control Yes/yes/yes £971/£267/£1,368 £1,710/yes/£900
Ceramic brakes/leather/heated seats £6,250/yes/yes £4,977/£1,428/£284 £5,250/yes/yes
Metallic paint/xenons/sports exhaust Yes/yes/no £588/yes/£1,530 £614/yes/£890
Sat-nav/USB/DAB radio/Bluetooth Yes/yes/yes/yes £2,141/y/£324/£446 Yes/yes/yes/yes

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