When the Engine Malfunction (and it will be 'when') just slow right down, indicate to pull in if safe, stop the car, switch off the engine, re-start the engine and carry on as if nothing happened. (If you're on a by-pass make sure you put your Hazard lights on).
You'll get brownie points for staying calm.
By the way, your car need to return to the dealer to have the computer completely re-installed. I had the problem for weeks and was yo-yo-ing back and forth to get it sorted with no luck until Ford UK got involved at my request and it has finally been fixed. It IS a software fault.
Congratulations Toby !!!! Word of advice; now learn how to drive. It is a completely different ball game being unaccompanied. Just take care and remember the motor car is just as lethal as a gun, and wrong use can result in similar penalties.
cheers John. One thing i have always hated being a passenger is people driving stupid. Im 24 and 9/10 will have my kids in the car so i would never put there lives at risk by driving stupid. One thing in hating is since my L plates came of people are pulling out on me or cutting me up. It is a very different feel now as i don't have a instructor telling me but i will never stoop to there level. Im very greatful for your advice mate