How certain accessories affect fuel economy and vehicle handling/performance

Any increase in weight will require a corresponding increase in power to move it and this includes moving the object at a constant speed.

Roger

Got to be a fun spong here and ask the most obvious question, are you wanting or needing the items? I would argue that the long range tank could be a useful tool, but a steel bumper would to my mind be a bit like towing a caravan every day of the year so you have it ready on the fortnight you actually need it. Same issue for the roof system. Don't get me wrong I have cross bars bolted on my roof permanently even though they cost me fuel but it's Monday and I have already had 3 different items on the roof this week so it makes sense. Also as a shepherd I could make a reasonable argument for having a steel bumper it could be quite useful but the increase in weight would definitely limit my ability to travel on soft ground cleanly so I don't have one. One has to be pragmatic and realistic.

Every modification will compromise the car in one way or another. If you are fitting the parts because you need the functionality then the slight increase in fuel economy is of no significance. If you are fitting (expensive?) parts just for looks but are worried about the extra cost of fuel then you probably need to re-asses your priorities.

Thanks a lot for all of your helpful replies! It's giving me a bit more of an idea about what to expect if I go ahead and get those accessories.

Cheers,
Lachlan

wrote:

Every modification will compromise the car in one way or another.

I guess this is all a matter of perspective. As in many cases I think you could also say every modification is also an enhancement of some kind.