It kind of goes against the grain a little, but there’s a valid case for listening to your friends and mechanic and driving the car until it stops. Since your car is worth – based on average asking prices – about $10,000, you could easily overcapitalise on a new transmission.

The best advice is to have it checked over by a transmission specialist who will know what to look for based on the symptoms they see. You’re right in that a bad pothole could have damaged a drive-shaft (or a wheel, or suspension component) and the torque converter is also a candidate to produce a fault in the way the car drives. On the flip-side, you might simply find that a service and change of fluid brings the transmission back to full health. Meantime, I’m not so sure about rebuilt transmissions not carrying a warranty. Australia’s consumer law suggests that may not be the case.

Kia rates the 2017 Sorento to tow a braked trailer of up to 2000kg. That much weight should be well within the limits of the car’s mechanical systems and reflects testing that Kia would have done before releasing the car. Which is to say, you won’t damage the car by towing a sub-two-tonne caravan.

Provided that is, that the caravan and car are loaded correctly and the rig is balanced and safe. This is also dependent on the vehicle being in perfect condition and you diving it correctly in the context of towing a heavy load.

The automatic transmission is your friend here, too, as it is smart enough to decide what gear it needs to be in to make the engine’s life as easy as possible and avoid unnecessary wear and tear. If you think the engine is labouring at any point, you can also lock the transmission out of overdrive and let the engine breath a little easier.

The default purchase for somebody looking for a mid-sized hybrid SUV is the Toyota RAV4 Hybrid. But if that’s too big, there’s the Toyota Yaris Cross Hybrid, C-HR Hybrid and even the Corolla Cross Hybrid which sounds like the marketplace is getting crowded but is really just a reflection of the appetite right now for cars like these. And that’s the catch; the waiting times for a brand-new example of some of these cars is out to many months and even years. So your plan to shop second-hand makes plenty of sense, but don’t expect any bargains in a market currently being dominated by lots of demand and less supply.

Beyond the Toyota brand (which has been doing hybrids longer than just about anybody else) there’s also the Mazda CX-30, Subaru XV Hybrid, Haval Jolion Hybrid, Kia Niro, Subaru Forester Hybrid, Nissan Qashqai e-Power, MG HS, Honda HR-V e and more. For something a bit bigger, try the Kia Sorento or Hyundai Santa Fe hybrids. There are others out there, too, that are probably bigger or more expensive than you need, but it's very much a growing scene in the Australian marketplace.