QUOTE(potatobanana @ Jul 9 2021, 11:19 AM)
Was initially looking at Renault Megane (earlier gen) but kinda skeptical with it's reliability.
Also looking at Peugeot 208 GTI, but it might give us more reliability worriness than fun.
Any other suggestions?
Most people have incorrect definition of reliability.
Reliability by engineers/scientist/mathematician is time-bound, involve confident level, and it is completely different from quality. To declare reliability, one must know the designed life-cycle of a component.
Here's some example
Product A designed to work with designed High Performance (good spec) specification for 5 years, with confident level of 0.02% escape rate
Product B designed to work with designed Slow Performance (low spec) specification for 8 years, with confident level of 0.02% escape rate
Product C designed to work with designed High Performance (good spec) specification for 3 years, with confident level of 0.02% escape rate
Product D designed to work with designed Slow Performance (low spec) specification for 20 years, with confident level of ?? escape rate (real world 30%)
Most people call B more reliable than A, in reality both are good reliability base on designed specification. People complains A is also expensive, but forgot what A enabled, eg:. A is high precision and ultra fast ABS sensor that support advance torque vectoring, while B is low sampling rate slow sensor.
C is an example of lower quality, but still goes through accelerated stress test with a proper confident level from manufacturer, still good reliability.
D is an example of low quality and low reliability. Where manufacturer skim on the testing cost. It could last 20 years, but have to try the luck.
You might ask, what's the different to the user? The component/part last shorter, result still the same. There is big different for the manufacturer.
Reliability is an issue that each factory failed to meet the metrics and actively working for a fix.
Life time issue is not a component issue itself, it is business decision of the car maker to select a even more expensive component that last longer, or continue to replace the component as the component work according to the specification.
Also one do not know if the defect is within the expected escape rate. Reliability is bathtub curve, at the manufacturing the defect rate is high and factory testing filter them out, then defect rate remains low until the designed life cycle, and the defect rate skyrocket again.
Lastly for your question, Porsche from the sport devision GT2/GT2 RS GT3/GT3 RS, GT4 are the most reliable road legal car worldwide (Japanese included) when operate at the vehicle full potential regularly. It is so far the only group of cars in completely stock setup that can be daily driven in rack track, rev to 8000rpm, 9000rpm only with regular maintenance.
Look for Robert Mitchell and Misha Charoudin from Apex. They run a GT2 RS MR as taxi on Nurburgring, doing 30,000KM a year, only regular oil change. Note: they also like the regular taxi, they don't stop the engine between customer wait, reduce start/stop wear.
Unfortunately, those cars are very expensive, but nothing beat them when comes to reliability.
This post has been edited by constant_weight: Jul 9 2021, 12:22 PM