Its because you are low on brake fluid which means you have a leak or that your brakes are worn down and need to be changed soon.
Its going to be under the dash beside the gas pedal
the gears prob fell out you need tranny work done
check the balancing on the tires.
If you have white smoke coming out the tail pipe and the smoke has a sweet smell to it, the car has bad problems.
It will Automatically stop and you would be arrested.
Check your spark plugs or have your transmission checked. Could be a clutch problem if it's manual.
You'll have used a decent portion of gas and worn down your e brake, other than that no engine or chassis damage.
My Hyundai Elantra 2008 GLS with 13,800 miles on it had a vibrating rattle especially when idling but also while driving although not always. I bought the car used. After four months of going crazy with the sound we found that it was coming from where the back seat joins the frame. It is not tightly joined there nor is it cushioned. We stuffed some thin cardboard around it to tighten it. That keeps it from vibrating and rattling.
I felt dumb but I had the same problem, there was a WINDOW LOCK I had pushed, it is on the Drivers Door. My youngest son figured it out
lots of strain on the engine i would imagine..
It is important to know the symptoms of a bad car part. The symptoms of a coil going bad would be having a trouble starting and running the car, the coil getting hot, and poor fuel economy.
jack the car up and there is a cable going to both back brakes, usually if you yank on the cable it should release them