Buying decision off-road vehicles

Hello, I’m looking for a reliable off-road car – preferably petrol, because I only travel between 5,000 and 10,000 km per year. Ideally it should be a 3-door car with a short wheelbase, because I don’t need a too big vehicle, for example my wife doesn’t like a “big car”. The car should be used from time to time as a tractor for a horse trailer for 2 horses. It can easily also be an older year of construction (from approx. 96). You recommend me? Thank you for your help in advance. Greetings Offroad56