Hi Luke,

The sky’s the limit, really. We know of some cars (not many admittedly, but they are out there) that have hit one milllion miles (miles, not kilometres) with regular and fastidious maintenance. If you really keep the car in good condition, make sure it’s proper serviced, use the right parts and especially good quality replacement components such as filters, tyres and oil (most importantly, oil) then you should pretty handily get it up to around 300,000km before you need to replace any major parts.