The most reliable cars of 2008

Every 2008 car tested in Britain in one year, ranked by how often it failed. Measured, not surveyed.

Best

#	Car	Engine	Failure rate	Tests
1	Peugeot 2008	1.2 Petrol	7%	602
2	Porsche 911	3.6 Petrol	7%	981
3	Peugeot 2008	1.2 Petrol	8%	14,584
4	Peugeot 2008	1.2 Petrol	8%	9,683
5	Porsche Boxster	3.4 Petrol	8%	530
6	Peugeot 2008	Electric	8%	1,793
7	Bentley Continental	6.0 Petrol	9%	980
8	Peugeot 2008	1.5 Diesel	9%	2,106
9	BMW M3	4.0 Petrol	9%	1,212
10	Porsche 911	3.8 Petrol	10%	998
11	Porsche Boxster	2.7 Petrol	10%	629
12	Peugeot 2008	1.2 Petrol	11%	15,269
13	Audi R8	4.2 Petrol	11%	569
14	Peugeot 2008	1.5 Diesel	11%	955
15	Toyota Estima	2.4 Hybrid	13%	512
16	Peugeot 2008	1.5 Diesel	13%	837
17	Audi A8	3.0 Diesel	13%	653
18	Peugeot 2008	1.2 Petrol	14%	12,582
19	Peugeot 2008	1.6 Diesel	14%	1,715
20	Toyota Estima	2.4 Petrol	14%	693
21	Mercedes-Benz SL-Class	3.5 Petrol	15%	573
22	Peugeot 2008	1.6 Petrol	16%	513
23	Fiat Ducato	3.0 Diesel	16%	1,567
24	Jaguar XK	4.2 Petrol	16%	810
25	Nissan Elgrand	3.5 Petrol	16%	715

Worst

#	Car	Engine	Failure rate	Tests
1	Nissan Qashqai	1.5 Diesel	36%	4,134
2	Nissan Qashqai	2.0 Diesel	35%	2,898
3	Renault Megane	1.4 Petrol	34%	716
4	Ford KA	1.3 Petrol	34%	8,292
5	Nissan Qashqai	1.6 Petrol	34%	8,642
6	Renault Grand Scenic	1.6 Petrol	34%	694
7	Fiat Bravo	1.4 Petrol	33%	1,807
8	Chevrolet Aveo	1.4 Petrol	33%	624
9	Fiat Bravo	1.9 Diesel	33%	520
10	Seat Alhambra	2.0 Diesel	33%	690
11	Mazda 5	1.8 Petrol	33%	1,212
12	Renault Megane	1.5 Diesel	33%	2,665
13	Chevrolet Lacetti	1.6 Petrol	33%	558
14	Renault Scenic	1.5 Diesel	33%	972
15	Mazda Bongo	2.5 Diesel	33%	648
16	Fiat Panda	1.2 Diesel	33%	1,212
17	Renault Clio	1.5 Diesel	33%	3,712
18	Nissan Pathfinder	2.5 Diesel	33%	800
19	Peugeot Expert	2.0 Diesel	33%	2,205
20	Volkswagen Beetle	1.9 Diesel	32%	568
21	KIA Sportage	2.0 Petrol	32%	755
22	Peugeot 4007	2.2 Diesel	32%	551
23	Citroen C3	1.6 Diesel	32%	738
24	Chevrolet Aveo	1.2 Petrol	32%	593
25	Chevrolet Kalos	1.2 Petrol	32%	680

What this measures

Britain tests every car over three years old against a published standard and publishes the result. This is that record for the 2008 model year, so every car here is the same age and none is flattered by being newer.

A car driven less fails less. An expensive one often sits high for reasons that are not about how well it was built, which is why the app can rank these at the same odometer reading.