Ford used the same body on its Focus from 2011 until the model was replaced in 2018. On that basis, the front door from either of the cars you’ve listed should fit your car perfectly. You don’t even need to worry about finding a door from a sedan or hatch as opposed to a two-door Focus, as Ford didn’t offer that model in Australia in a two or three-door (which would have had longer doors). Even the sportiest Focus, the ST, was a five-door hatchback. Ford did give the Focus a mild facelift in 2015, but the styling changes were restricted to the front and rear, with the doors not altering at all.

Finding a second-hand door shouldn’t present too many problems the Focus sold in reasonable numbers and many ended up in recycling yards. You might even strike it really lucky and find the door in the same colour as your car which might negate the need to have it painted.

If you like the idea of the Honda but don’t want such a physically large package, take a look at the Honda Jazz. Yes, it’s probably one size down from your current Focus, but its interior is very spacious for its external dimensions. It’s also the car that has probably the most versatile interior in terms of flexible seating arrangements with a rear seat that folds, slides and tumbles. It also has normal ride height (as opposed to the jacked-up stance that SUVs boast) so your dog may find it easier to jump in without hitting anything. Beyond that, you really need to visit dealerships and check for yourself that rear doors, rear seats and general layout suit your very specific canine requirements.

The Mark 3 Ford Focus was sold here from 2011 until 2018, so, on the surface, pretty much any car from that range should be able to offer up a replacement front window. But it’s not that simple. The rear window could be a bit more specific, because the Focus was available as a four-door sedan and a five-door hatchback, so the rear doors on each of these variants could be different. Other potential incompatibility issues could crop up between the very early version of this car which was built in Germany, and the later version (which you have) which was built in Thailand. There’s another catch in this apparently simple task, too: For the facelift in mid-2015, Ford was chasing greater interior refinement and, to achieve that, switched to thicker side glass. That means you need to find a window from a post-2015 car as the thinner glass of earlier models will probably be incompatible with the rest of the window hardware in your car.