Driving in a straight line, how hard can that be?
On the face of it, it’s the simplest of tasks, but anyone who’s had a bash at drag racing knows that extracting the best acceleration times from a car can be a frustrating job.
Crucial tenths are lost with every flare of wheelspin or fluffed shift, and it’s important to get it right – the value attached to ‘the numbers’ is enormous, and the world at large is never shy in voicing its opinion should it deem your efforts lacking.
To that end, at the risk of divulging trade secrets, here you’ll find the details of how we extract the best times from each car, their behaviour in the process and, should we not match the manufacturer claims, the reasons why not. One of those reasons is time.
With 11 cars to performance test and around 90 minutes to do so, even splitting the field between Morley and yours truly means we only have the opportunity for three or four runs in each car.
One factor working in our favour is the venue. It might not be a prepared track, but our makeshift Winton ‘strip’ – running in reverse direction from turn 11 – provides some quick times. There’s the small issue of a bumpy, dirty braking zone, and a ‘jump’ at the 400m mark (where Winton’s short track crosses over the long circuit) but more on that later. At least it keeps things interesting.
Foolproof all-wheel drive systems, tricky transmissions and clever launch control might have taken the skill out of performance testing some vehicles – step forward VW Golf R and Mercedes-AMG A45 – but that’s certainly not the case with the current crop of turbocharged front-drive hot hatches.
Physics is working against you for a start, but add more than 200kW and track-biased tyres in the case of the Renault Sport Megane RS275 Trophy-R and you have a recipe for frustration.
Loading the car against the handbrake and minimising wheelspin/axle tramp in first gear is the key to a good time, and 0-100km/h in 5.8sec and a 13.9sec quarter mile at 170.02km/h are very quick times for a front-drive hatch.
Unfortunately, the Megane is one of a number of cars that suffers from equipment failure – a dud memory card means we only have times to the nearest tenth rather than the usual hundredth for around half the field. Apologies, but these things happen.
Unsurprisingly, with around 50kW less power, the field’s other French front-driver, the Peugeot 208 GTi 30th Anniversary, can’t match the Megane, though 0-100km/h in 6.60sec and 14.81sec at 156.73km/h is still pretty handy for a baby hot hatch. However, according to Morley, it’s a handful in the braking zone and the clutch isn’t particularly loving life.
It may have an even smaller engine than the Pug, but BMW’s i8 is in a different league in terms of performance. With the 1.5-litre turbocharged three-cylinder ably assisted by electricity, the futuristic sportscar fires off the line with zero fuss, passing 100km/h in 4.6sec and the quarter mile in 12.7sec at 183.9km/h.
We’ve gone slightly faster in an i8 before (0-100km/h 4.46sec; 0-400m 12.62sec), but launch control didn’t want to work on this occasion, which probably accounts for the difference.
Also packing a 1.5-litre engine, though without the benefits of batteries or boost, is Mazda’s new MX-5. As the car with by far the least power and torque (57kW/150Nm down on the next lowest), there’s no prizes for guessing it earns the drag strip wooden spoon, however we’d bet that it’s faster than most will give it credit for.
Dial up around 5000rpm, sidestep the clutch, and the lightweight roadster scurries off the line with a hint of wheelspin, hitting 100km/h in 7.5sec to beat its claim by a full second! It runs out of puff at higher speeds, needing 15.4sec to cross the line at 142.8km/h, but the lack of grunt is most telling in its rolling acceleration – its 6.2sec 80-120km/h time 2.2sec slower than the Peugeot and exactly double that of the Megane.
Lack of grunt isn’t a criticism that could ever be levelled at Ford’s supercharged Falcon XR8. The key to getting the blown brute off the line is to start in second gear – a trick also used by Ford’s testers as it turns out.
Spool the engine up slightly against the brakes, then release and slowly feed in the throttle. Get it right and you’ll dispatch 0-100km/h in 4.8sec and 0-400m in 12.8sec at 183.1km/h. Feed in slightly too much power and you’ll leave thick black marks for the best part of 200 metres, so it’s a win either way.
Once it’s off the line cleanly, only one gearchange is needed over the quarter, though the speed with which the XR8 revs from 5000-6000rpm means it’s easy to bash into the rev limiter.
Arriving with three pedals and a lever in the centre console, Holden’s new VF II Redline requires a little extra work. Aussie manufacturers haven’t quoted performance figures for years, but Holden has given us a target to aim at by claiming 0-100km/h in 4.9sec for the launch-control-equipped manual. However, should you actually want to match that claim, you can forget about using launch control unless you’re launching on pure VHT.
The system dials up 4000rpm, which merely sets off a furious struggle between the electronics and rear tyres as soon as the clutch is dropped, half-a-second being wasted in the process.
Dropping launch rpm to just over 2000rpm results in a clean getaway, and 0-100km/h in 5.0sec dead and a 13.1sec quarter at 179.4km/h. What’s more impressive is the experience from behind the wheel.
With the final drive shortened from 3.45:1 to 3.73:1, the engine revs with much greater urgency and it roars like an enraged lion. Holden’s fiddled with the shift, too, as gears slot home faster and with much greater accuracy than before. It’s great fun, but it’s still slower than the XR8.
As is the Lexus RC F, if only by a whisker, which hammers home just what performance bargains our local V8s are. Cajoling Japan’s only V8 coupe off the line requires a bit of finesse on Morley’s part, who also says it doesn’t really feel that fast, but there’s no arguing with 0-100km/h in 4.75sec and a 12.86sec quarter mile at 182.38km/h. Sounds good, too. But imagine how fast it would be if it weighed 200kg less?
Faster than the new Mercedes-AMG C63 S, based on this evidence. But of all the cars at this year’s PCOTY, it’s Merc’s newly boosted C63 that proves most difficult to extract a representative number from. The culprit isn’t too difficult to identify: sending 700Nm through 265mm-wide rear rubber is always going to end in melted Michelins, and launch control only makes it worse.
The C63 is the perfect case of if we had all day, we’d nail a number, but as it stands 0-100km/h in 4.76sec and a 12.65sec quarter at 194.40km/h is the best it can manage. The trap speed gives some hint as to its potential, though.
With 50Nm less torque and 295mm rear rubber, the identically-engined AMG GT S has less of an issue with power down but proves equally frustrating – the culprit this time, the gearbox.
For whatever reason, Race Start doesn’t want to play ball – though based on Morley’s experience in the C63, this is no great loss – and the electronics won’t let you stall it against the brakes, which leaves walking it off the line as your only option, though it’s probably the most effective.
The problem here is that the dual-clutch ’box takes forever (okay, around half-a-second) to engage, and, while full throttle is initially needed to get moving, as the car hits boost in first it erupts into wasteful wheelspin. A first run of 5.2sec 0-100km/h and a 12.9sec quarter mile is an example of how badly things can go wrong.
With a bit of practice and some heat in the sticky Michelin Cup tyres, however, it manages 0-100km/h in an impressive 4.0sec and an 11.8sec quarter mile at 202.6km/h, at which point it’s still pulling like a train. Boy does it hate bumps, though, constantly shifting side to side under brakes like it’s negotiating choppy seas.
Last year, Jaguar's F-Type Coupe R faced similar start-line struggles to the AMGs, however the addition of all-wheel drive means it’s now, to quote Morley, “dead easy to launch”. Simply plant your foot and hold on, as 100km/h flashes by in just 3.75sec and the quarter mile just over eight seconds later – the all-paw kitty managing 0-400m in 11.80 seconds at 193.35km/h. But while the bellowing Jag might be the easiest car down the strip, it isn’t the fastest.
That honour goes to the Porsche 911 GT3. It might not strike you as a straight-line star on paper, but rear-engined traction and a finely-honed launch control system help it blitz the 0-100km/h sprint in just 3.55sec, while the feral flat-six’s outrageous top end means it never stops accelerating.
It crosses the 400m mark three-tenths clear of anything else at 11.48sec, and it’s hauling at 201.60km/h as it does so. Its rolling acceleration is equally brutal, matching the turbocharged AMG GT S by taking 2.0sec from 80-120km/h.
It mightn’t be the most comfortable ride – Morley swears he was airborne where the tracks cross over, and it didn't like the bumps, either – but neither was it a particular challenge. Maybe this straight-line thing isn't so tricky after all.
Behold, the numbers
|1st||Porsche 911 GT3||3.55sec|
|2||Jaguar F-Type R AWD||3.75sec|
|3||Mercedes-AMG GT S||4.00sec|
|5||Lexus RC F||4.75sec|
|7||Ford Falcon XR8||4.80sec|
|8||Holden VF II Redline||5.00sec|
|10||Peugeot 208 30th||6.60sec|
|1st||Porsche 911 GT3||11.48sec|
|2||Mercedes-AMG GT S||11.80sec|
|3||Jaguar F-Type R AWD||11.80sec|
|6||Ford Falcon XR8||12.80sec|
|7||Lexus RC F||12.86sec|
|8||Holden VF II Redline||13.10sec|
|10||Peugeot 208 30th||14.81sec|
|1st||Mercedes-AMG GT S||202.60km/h|
|2||Porsche 911 GT3||201.60km/h|
|4||Jaguar F-Type R AWD||193.35km/h|
|6||Ford Falcon XR8||183.10km/h|
|7||Lexus RC F||182.38km/h|
|8||Holden VF II Redline||179.40km/h|
|10||Peugeot 208 30th||156.73km/h|
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