We're looking at petrol this time as diesel seems to be more expensive to run these days. I believe that petrol prices at the pump drop after oil price drops but diesel seems to not follow such drops as quickly. It used to be diesel was cheaper than petrol but in some stations now diesel can be as much as 10p per litre more than petrol!! I have seen that a few times when out and about.
Whats wrong with boring? Well if it means the handling, comfort and other performance measures are worse then with all things considered would you spend £10k on boring when there is a £10k option that is interesting and better overall?
Diseasel can cost more during the winter months as the same feedstock also make heating oil, and as demand rises so does price.
If you're a low mileage or regular short journey user then diesel is best avoided. That aside, even in winter months a 70+ MPG oil burning car represents a significant saving over a 45-55 MPG one with a petrol engine.
It's also a lot easier to obtain realistic high MPG figures from a diesel than a petrol.
It's horses for courses, particularly when looking at the ticket prices which are still somewhat elevated for diesel vehicles, suggesting buyers still prize those attributes despite the increasing cost of the fuel.
In the grand scheme £10k isn't a lot these days,you can't afford to try and be too clever. At that end of the market any individual cars attributes are liable to be a function of how well it's been driven and how diligently it's been maintained. I'd rather have a Dacia that's been treated well than a Skoda that's been driven poorly and maintained even worse. At the lower portion of rhe market one should be looking at individual vehicles aether than any notional idea that a Ford Tippex is a good car and therefore automatically worth having.