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Manage with one car - tourantass
Hi I have just been comparing fuel costs using this...www.torquecars.com/tools/annual-fuel-cost-from-mpg...p. and am just weighing up if running our second more economical car is worth hanging on to.....Our people/stuff shifter averages 30mpg...our little run around is averaging 40 mpg..... we could of course try and find a more economical car to replace the two but then when you factor in costs is it really worth spending thousands to save few hundred £’s a year.......
Manage with one car - daveyjp

Regardless of mpg, running two cars is never cheaper than running one.

Manage with one car - badbusdriver

Regardless of mpg, running two cars is never cheaper than running one.

That isn't really true, you can easily run 2 cheaper cars for less than 1 new one, especially if the new one is something which will depreciate heavily like an Insignia.

Manage with one car - daveyjp
It is totally true. You can run two cheap for less than one new. But one cheap will cost less than two cheap.
Manage with one car - badbusdriver

Nobody is saying that you can run 2 cheap cars for less than one, but that is not what you said in your earlier post.

'Regardless of mpg, running two cars is never cheaper than running one."

Which is not true, as you have just pointed out!.

Manage with one car - Metropolis.
We have always kept at least as many cars as there are people in the household,
sometimes more. An older runabout, normally lwb 4x4 wagon of some kind
for moving things about, a smaller car for parking in town and a ‘nice’ larger
4x4 for longer trips. Keeps the mileage down and as the two runabouts
are trusty old things with no outstanding payments it’s a matter of why not.
Sure, there are annual expenses but in the grand scheme of things,
no, it’s not worth spending thousands to save a few hundreds
each year. The runabouts are already fully depreciated.
Extra bonus if you have owned the older runabout since newish, as you know it’s history.
Keep on as you are!
Manage with one car - gordonbennet

To make it pay, as Metropolis the second car should be low value and owned outright, cheap as chips so depreciation as low as possible, cheap tax and insurance and capable of around double the mpg of the other car, basically reliable design and simple and cheap to fix, ie Aygo.