It oviously depends what you did to the car. you can't ask the computer if you are the only one who knows what you did to it!!!
Something is burning. Park the car, tow it to the shop. Sounds bad.
If you drive your car without oil and it dies, your engine has seized. Time to replace the engine or the vehicle.
Could be oil leaking onto the exhaust, because the exhaust usually runs back there and then to the back of the car
Could be any number of things. You'd have to take it to a mechanic to tell for sure.
under the hood of your car
close your hood
By pulling the hood release under the front of the car.
Yes
Alternator
Sparks under the hood of a car are caused by shorts in the electrical system. A broken wire or loose connection is usually the culprit.
Local car dealerships and auto detail companies may provide under car hood cleaning. For general top of the car hood cleaning, visit a local car wash.
you might be able to get under the car somehow and flip the hood release from the inside.