Saturday, April 14, 2018

BMW M5 vs Mercedes-AMG E 63 S

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2018-04-14 10:00

The new BMW M5 promises an amazing mix of performance and luxury, but is it enough to give it the edge over the Mercedes-AMG E 63?

BMW M5 vs Mercedes-AMG E 63 S - header

Supersaloons have entered a new era, and in the age-old head to head between BMW’s M Division and Mercedes-AMG, the former has a fresh challenger, in the shape of its all-new M5.

That’s a hallowed nameplate in this class because the M5 has pretty much always been the benchmark when it comes to insanely fast but still usable, hi-tech supersaloons. Looking at the spec sheet, the new car has what it takes to topple the current class leader.

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In the evolution to this model there have been some big changes to the engineering. The M5 now features four-wheel drive with myriad driver settings and ways to put its colossal level of power to the road. But it was the Mercedes-AMG E 63 that first emerged with this advanced tech, giving the driver just as many options.

Both cars use V8 turbo engines and auto gearboxes, have lots of cutting-edge technology inside and the luxury and flexibility you’d expect from a supersaloon. Which balances these attributes better to take the win?

BMW M5

Model: BMW M5
Price: £89,645
Engine: 4.4-litre twin-turbo V8, 592bhp 
0-60mph: 3.2 seconds
Test economy: 24.0mpg/5.3mpl 
CO2: 241g/km
Annual road tax:  £450

The BMW M5 is an icon, and while the price has risen to a not insignificant £89,645 for this new model, there’s performance here to match some supercars costing twice that amount. The question is, does it deliver what an M5 always has: a blend of driving thrills with everyday usability?

The M5 proves that it’s devastatingly effective with four-wheel drive. That engine produces 592bhp and 750Nm of torque, so the traction the M xDrive system brings is welcome – but it’s the calibration for the M5 that’s a stroke of genius.

Combined with the Active M diff, in 4WD Sport mode the agility belies the M5’s size and weight. It still feels large, but the car behaves like a nicely balanced rear-drive sports saloon, with the diff helping to turn the BMW when you get on the throttle. The M xDrive system then diverts more power to the front when you need it to drag the car out of a corner with plenty of stability and at an alarming speed.

It’s a shame the steering’s squishy, slightly resistive feel to your inputs removes a layer of communication and means you’re not all that well connected to the front tyres, but the security four-wheel drive brings is unmatched. As is the pace.

The M5 sprinted from 0-60mph in an incredible 3.2 seconds – one tenth faster than the 100kg heavier E 63 S. However, you’ll be hard pushed to notice this or the M5’s in-gear advantage over the AMG, which was around a tenth or two in most ratios.

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What you will notice is the noise. Both V8s’ sound signatures are electronically enhanced, but the M5’s engine is more synthesised. With the £1,100 M Sport exhaust activated it produces a flat bark as the motor ramps up to 7,000rpm, but lift off and it drones artificially. It can’t match the AMG’s personality.

The gearbox doesn’t have the snap of the old DCT, but the shifts are smooth. It backs this up with plusher suspension damping than the E 63’s.

In Comfort it’s more compliant, softening blows and smothering bumps with more refinement and composure than the firmer-feeling Mercedes. It’s a more refined car, yet in the raciest modes the BMW matches its body control and delivers lots of grip; we’d just like more communicative steering. 

Testers’ notes: “Remember that, like the E 63, the M5’s 2WD setting is only accessible with the ESC off. Therefore, it might be worth paying for BMW’s M Driver training to learn your car’s behaviour in a safe environment.”

Mercedes-AMG E 63 S

Model: Mercedes-AMG E 63 S 4MATIC+ 
Price: £89,330
Engine: 4.0-litre twin-turbo V8, 604bhp
0-60mph: 3.3 seconds
Test economy: 21.1mpg/4.6mpl 
CO2: 207g/km
Annual road tax:  £450

The £89,330 Mercedes-AMG E 63 S is our current supersaloon champ, boasting an incredible power output and stupendous performance. On paper it offers more grunt than the M5, but does this advantage translate?

That incredible V8 defines the E 63 S and gives it an addictive personality. While it was one tenth slower than the M5 from 0-60mph in our tests, taking 3.3 seconds, this is still incredibly rapid for a near-two-tonne supersaloon.

The motor feels even more explosive than the BMW’s and romps from low revs, rocketing through the mid-range and hammering towards its rev limiter with an incredibly bassy but rich and purposeful soundtrack, popping and banging with that AMG exhaust engaged. The shifts are a match for the M5’s in manual mode, while it’s as smooth in Comfort and therefore as easy to drive as the BMW.

It has nicer steering that delivers more feedback than the M5, without its squidgy and indistinct feel; as you move off centre the weightier set-up in the E 63 feels more natural. Adding weight to the M5 with its different modes makes it even more artificial.

There’s lots of grip to exploit, but the AMG is much firmer than the M car, even in its Comfort setting. On 20-inch alloys – standard on the E 63 S – it thumps over potholes and expansion strips, while even smaller ridges and inputs to the suspension unsettle the car more than in the BMW. The tighter focus means body control is good, but the road noise from the big wheels and tyres isn’t suppressed as well as in the BMW.

Toggle through to Sport+ mode for the dampers and the E 63 ramps up control, with a more rigid feeling. It’s surprising just how hard you can lean on the chassis and how well it stands up to this punishment, but as with the M5, its size means it’s better suited to more open B-roads and A-roads, where the 4WD system can work to enhance agility. 

Testers’ notes: “These are high-performance cars, so servicing costs are fairly steep. BMW offers a £999 three-year package, while Mercedes’ deal costs £45 per month for three years, which works out at £1,620.”

Verdict 

First place: BMW M5

The M5 is faster and more comfortable than the E 63. It’s also as good to drive and offers a great level of tech, so while its character is a little more subtle than the AMG, its spread of ability is actually broader, by the slimmest of margins. It’s practical enough and, although efficiency isn’t as important with cars like these, it’ll be slightly cheaper to run, which is a bonus.

Second place: Mercedes-AMG E 63 S

Mercedes-AMG E 63 S - drift
 

If you’re after real charisma, the E 63 S is brimming with it. It’s as fast as you’ll ever need, handles superbly, offers lovely balance, impressive practicality and an addictive noise. But the M5 is just a little bit better in key areas: it’s marginally faster, the ride is noticeably better and it’s more comfortable and refined. Still, personal choice will play a big part here; both are brilliant. 

Other options for similar money...

New: Alpina B5 Biturbo AWD

Alpina B5 Touring - front

Price: £89,00
Engine: 4.4-litre V8, 600bhp

If the M5 is a little too obvious, Alpina’s take might be for you. The B5 Biturbo boasts four-wheel drive and even more power, with 600bhp. The ride quality is arguably even better, while being based on a 5 Series means the same great traits.

Used: Porsche Panamera Turbo

Porsche Panamera Turbo - front cornering

Price: £99,50
Engine: 4.0-litre V8, 542bhp 

Even as a used buy it’s a little more expensive, but the Porsche badge arguably carries more cachet, and the Panamera Turbo matches the M5 and E 63’s performance with an even more premium image and some very advanced tech. 

Figures

BMW M5 Mercedes-AMG E 63 S 4MATIC+
On the road price/total as tested £89,645/£103,210 £89,330/£103,430
Residual value (after 3yrs/36,000) £39,175/43.7% £37,295/41.8%
Depreciation £50,470 £52,035
Annual tax liability std/higher rate £6,504/£13,008 £6,515/£13,029
Annual fuel cost (12k/20k miles) £2,721/£4,535 £3,095/£5,158
Insurance group/quote/VED 49/£1,157/£450 47/£936/£450
Cost of servicing £999 (3yrs) £45 per month (3yrs)
Length/wheelbase 4,966/2,982mm 4,988/2,939mm
Height/width 1,473/1,903mm 1,463/1,907mm
Engine V8 twin-turbo/4,395cc V8 twin-turbo/3,982cc
Peak power/revs  592/5,600 bhp/rpm 604/5,750 bhp/rpm
Peak torque/revs  750/1,800 Nm/rpm 850/2,500 Nm/rpm
Transmission  8-spd auto/4wd 9-spd auto/4wd
Fuel tank capacity/spare wheel 68 litres/repair kit 66 litres/repair kit
Boot capacity  530 litres 540 litres
Kerbweight/payload/towing weight 1,855/585/2,000kg 1,955/540kg/N/A
Turning circle/drag coefficient 12.6 metres/0.31 Cd 12.5 metres/N/A
Basic warranty (miles)/recovery 3yrs (unlimited)/3yrs 3yrs (unlimited)/3yrs
Driver Power manufacturer/dealer pos. 9th/21st 21st/12th
NCAP: Adult/child/ped./assist/stars 91/85/81/59/5 95/90/77/62/5
0-60/30-70mph 3.2/2.3 secs 3.3/2.5 secs
30-50mph in 3rd/4th 1.5/2.0 secs 1.6/2.2 secs
50-70mph in 5th/6th/7th/8th 2.4/3.3/4.2/7.6 secs 2.5/3.4/4.8/7.8 secs
Top speed/rpm at 70mph  155mph*/1,700rpm 186mph*/1,500rpm
Braking 70-0/60-0/30-0mph  45.4/33.3/8.7m 42.8/31.5/9.5m
Noise outside/idle/30/70mph 63/56/62/67 dB 63/56/63/69dB
Auto Express econ. (mpg/mpl)/range 24.0/5.3/359 miles 21.1/4.6/306 miles
Govt urban/extra-urban/combined  19.5/34.4/26.9mpg 24.1/37.2/31.0mpg
Govt urban/extra-urban/combined  4.3/7.6/5.9mpl 5.3/8.2/6.8mpl
Actual/claimed CO2/tax bracket 272/241g/km/37% 309/207g/km/37%
Airbags/Isofix/park sensors/camera Six/yes/yes/yes Seven/yes/yes/yes
Auto box/lane keep/blindspot/AEB Yes/£1,470^/yes/yes Yes/£595^/£595^/yes
Clim ctrl/cruise/leather/heated seats Yes/yes/yes/yes Yes/yes/yes/yes
Metallic/LEDs/k’less entry & go/pwr boot Yes/yes/yes/yes £685/yes/£2,595^/yes
Nav/digi dash/DAB/connect services Yes/yes/yes/yes Yes/yes/yes/yes
Wireless charge/CarPlay/Android Auto Yes/£235/no £150/yes/yes


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