stevei wrote:
Nowhere did I object to them comparing the 4x4s with luxury saloons. My objection was them not taking into account that a gallon of diesel contains more energy than a gallon of petrol, therefore the same mpg represents worse economy for a diesel, and that a diesel emits completely different types of pollution to a petrol engine which means that a comparison based solely on mpg is not valid.
Fairy snuff but 4x4's tend to be diesels because ultimate performance is not an issue, fuel economy is so you're effectively steered in the direction of diesel when making a decision.
stevei wrote:
I'm not keen, personally, on the idea of using a 4x4 when a lighter more efficient car can do the job, but the one thing that has made me seriously consider buying one is speed humps. I'd consider myself entirely justified in buying one as a response to these hazards intentionally placed in our roads. After all, adapting to our environment is what got us to where we are.
My feelings precisely, london's roads bear more in common with a vehicle manufacturers endurance testing & proving ground than a decent driving surface and your average family car simply isn't designed to take that much punishment. A good 4x4 is. and it's not just springs and shocks that are the issue, tracking and alignment is messed up, bottoming out breaking sumps and exhausts, steering components, all of the parts adversely affected are build to higher standards and/or better protected by the height on a real off-roader.
I'd love to see a graphical display of year-on-year 4x4 ownership against the number of speed bumps.