i-StARS in a reasonably priced car
This ability to restart the engine more or less instantly means the engine management system can be far more aggressive in turning the engine off. If you're moving in a 508 at below 5mph with your foot on the brake then odds on the engine is either very nearly off or very actually off.
Big Peugeot mouth looking better
Engine cut-off and restart are both impressively unobtrusive, a testament both to the efficiency of i-StARS and to the refinement of Pegueot’s 1.6 litre turbo-diesel engine. Restart is also near enough instant. The moment you take your foot off the brake, the 508 is ready to roll.
The result of all this stopping and starting is a five per cent increase in fuel economy on the open road and up to 15 per cent on the urban cycle. CO2 emissions drop by a similar percentage. For a car of its size, the 508s consumption and emission figures are impressive: 64.2mpg and 109g/km, respectively, over the EU combined test cycle.
Fill the 508 up and check the range-to-refill and you see one of its party pieces: the 850-mile maximum touring range.
Strong lines front to back
With 112bhp available at 3600rpm and 180lb-ft of torque at 1500rpm, performance doesn’t exactly make your hair stand on end but the 508 will still accelerate to 60mph in 11.5 seconds and push on to 122mph - not bad for a 1.5 tonne D-class saloon with the fuel consumption of a Ford Ka.
Next page: Up a gear
That's a pretty good write up. I'm not a car nut by any stretch but the Reg's auto reviews are a nice break from the domestic tech and are mercifully free of petrol head stupidity and bombast. Keep it up.
Coasting in neutral, bad idea...
You obviously don't know how modern engine control units work then. The injectors don't open when the throttle isn't pressed and the revs are above idle, it's only the fact the engine is connected to a moving car that keeps the engine turning.
When you dip the clutch as soon as the revs reach about 1000rpm it has to start fuelling the engine again to stop it stalling, so you're actually using more fuel if you coast.
Re the oiling, the big ends and mains need about a bar to float safely, it isn't just about having oil in the right place, it needs to be at pressure.
If its a question of economy.....
and "saving the Earth" isn't a major priority, then you are better off buying an 8-10 year old car for a couple of grand, and running it into the ground.
You can get a really nice, comfortable, well appointed car for that price, and you can buy one hell of a lot of petrol / diesel for £17,000.
Running a big old car has other advantages. You don't feel the need to burst into tears when it gets dinged in a car park, you don't feel the need to get out of the way of overly aggressive Audi drivers, its no big deal when the kids spill coke all over the seats and, when it finally dies, its no great loss, you just buy another one.
Buying new cars, its a mugs game.