Exclusive: we reveal the best and worst car brands for reliability in 2017

When buying a new car you are quite correct to expect 100 per cent reliability for at least the first three years. However, you only need to acknowledge the existence of warranties, for which manufacturers commit to rectifying any faults free of charge over a predetermined period of time, to realise that even new cars must sometimes go wrong.

That’s borne out by correspondence from Telegraph readers, who over the years have voiced dissatisfaction relating to their new cars underperforming in regards to, among other things, excessive oil consumption, blocked diesel particulate filters, troublesome dual-clutch gearboxes and faulty Bluetooth connections.

The fact is that with any product, let alone one as complicated as a car, there is always going to be the odd occasion when something doesn’t work exactly as intended. Arguably your most powerful tool in avoiding this is to be guided by reliability…