I have a 240 sedan and a 740 wagon so I'll give you some additional info. If the 945 is a basic n/a model without the turbo they will share a lot because the engine is the same. But the difference is their overall design. The 240 is a simpler car with less chance to go wrong. The 945 was sold as a luxury model so it will have things like power seats, power sunroof, and other electrical parts that are likely to fail. The 240 is a very modular design that you can disassemble fairly easily (ie dash, interior parts, etc.) and has durable materials like the plastic headliner (the cloth headliners in the 745/945 are known for failure). You will also find a lot more parts sources and repair manuals available for the 245. The 945 will ride better. Either one is a good choice, I would go for the one in the best condition at the lowest price.