Just as with any car check fluids and make sure they are clean/decently clean without impurities (metal shavings in oil, completely discolored coolant, etc.). It is a sports car so it will have been beaten on somewhat. What the person ^^^ said, definitely check that stuff.
If the vehicle is having issues going into gear check to see if it has a firewall adjuster on it. If it does and it is hard getting into gears, it MIGHT mean it is not adjusted correctly.
Try and figure out if there are any mods done to it. Finding this out will help immensely in what else you might want to check out.
I like showing off my car and thought you might appreciate...