Your current car sounds like desirable stock for many used car dealers. We'd recommend selling it privately or perhaps via a service like motorway.co.uk. Then you'll be in a strong position to negotiate on its replacement.

A new MG represents excellent value for money, although – like any new car at the moment – you could face a long wait for delivery.

If it's the MG ZS EV you're considering, it'll be worth waiting for the latest updated model rather than settling on a nearly-new pre-facelift example. Not only does it have a bigger battery and a longer range, but the infotainment system is much better and it should hold more of its value (reducing the monthly payments on a PCP).