Thanks for your question. I wouldn't concentrate too much on searching for a car with a 1.2 engine - actual engine capacity has little to do with performance or running costs these days, with small-capacity turbocharged petrols becoming the norm (e.g. many small cars are now powered with very capable 1.0-litre turbo engines). Having said that, a Ford Fiesta would be a good choice with the 1.25-litre petrol as this is more reliable than the EcoBoost engines. A Toyota Yaris would be another reliable choice, as would the Suzuki Swift. Also look at the Hyundai i20.