Bad smell when I floor the gas pedal, 2014 ford mustang v6 with 9000km?

Its been like this for awhile now but when i floor the gas pedal (from a stop or while moving) there's a bad smell coming from the exhaust, I can't smell anything from inside the car but my friends tell me when they're behind me. They say it smells like burning, however I check the oil regularly and it still has 50% life. Btw I only do this for short distance never holding it. The dealership told me just not to floor it and it won't do it. Wasn't much help.

Flooring the pedal from a stop are you trying to burn rubber?
sound like you engine trying to food out.
Some computers can't adjust spark fast enough
Or it could be bad rings or valves

My gt has done that forever but mine doesn't have cats so it could just be a little of the exhaust the exhaust getting in the car, removed cats makes your exhaust smell really strong.

Possible leak in your exhaust system. That is EXTREMELY dangerous & really should be checked out BEFORE you pass out a the wheel & die. OR even worse, kill an innocent bystander!

Sounds like a warranty issue. If the dealer won't fix it, there are other numbers in your owners manual.

All newer cars have that rotten egg smell and its the catalytic converters getting hot. Its normal and all cars do it. It will get less as the car gets older. You can only smell it when your following a car and don't smell it inside the car.