the air to fuel ratio mixture needs to be adjusted its running too rich.
don't ever smell your car's exhaust.
because of the exhaust
The car exhaust smells like the rotten eggs as a result of the hydrogen sulphide. This usually happens, when the engine is not serviced for a long time.
probably an exhaust leak, at or near the exhaust manifold
Likely an exhaust leak
Most likely your exhaust is rattling and the smell is because your catalytic converter is bad
Leak in exhaust system?
Sounds like you have a coolant leak.
Head gasket
Maybe a blown head gasket
"No offence, but its smells very bad in here."
Are you sure it's a leaking exhaust? If you think it is, then get a new exhaust fitted! But are you sure it isn't diesel smoke coming off the exhaust due to leaking seals on one or more injectors? That's the favorite!