That is oil. VERY BAD!! You need to take your car to your garage right away. You should know this, I'm not even old enough to drive and I know this.
your exhaust may be jammed
If fumes are coming into a car it is most likely not going to be coming from a head gasket. The more likely places will be a blown exhaust gasket, exhaust doughnut, or some other type of exhaust leak.
There is only 0.4 percent of oxygen in the car exhaust gases coming out of a car engine because most of it is used up in the combustion process. Exhaust fumes also contain carbon monoxide.
white smoke coming out of the exhaust 99 times out of 100 is coolant leaking into your engine and being burned. if this is the case, a head gasket is blown or something in your motor or head is cracked. oil burns a bluish color with a distinct smell.
Black smoke coming out of the exhaust of a car is usually due to oil being burned in the engine's cylinders. This can be caused by a worn piston ring or rings.
exhaust is pretty easy to smell. If you smell it, then you likely do, also check the rear end of the car for possible places where the exhaust can get into. a battery powered carbon monoxide detector will also work
Car maintenance is very important for a smooth ride. When there is white smoke coming out of the exhaust, it is usually an indication of water in the engine.
The fumes are the burnt exhaust gasses.
A car exhaust contains a mixture of gases:carbon dioxidecarbon monoxidenitrogennitrogen oxideswater vapourunburned hydrocarbons from fuelcyclic hydrocarbons
Sounds like coolant is leaking into the engine. Which means it probably has a cracked or blown head gasket.
In the exhaust pipe under car about in line with firewall. You will see a wire coming down from firewall into a plug in exhaust.
Blue exhaust fumes are an indication of burning oil, which is mixing with the fuel - probably from a leaking piston ring or valve seal. You definitely need to bring your car to a mechanic for a check-up.