The main things to look out for are suspension and worn bushes which aren't too expensive to fix but if the car is modified it's a different story. I bought my car standard with 260,000 km on the clock and didn't really have any issues with it but now that it's modified and just about to click over 280,000 I've replaced half the car. Average fuel consumption is 350-400km out of a tank around town and 500km+ if all highway.