Hi Scotty! I have a Volvo S40 from 2003, it has 174280 kilometers on it. And I bought it from another guy, but my problem with it is... after I've driven it for some time, it starts to smell like gas. And it seems like it just drinks gas, I can get probably 490 kilometers on a 60L full tank. Is that normal? And is it normal for the car to smell like gas inside when driving for a bit? Or am I smelling the gas from other cars??

not normal. Those often have problems with the throttle assembly on top of the engine and do that. Have a pro mechanic check that first