There must be more to it than just walking through the Renault dealer door, signing on the dotted line, then paying yer £199 a month....
I went into Renault 3 years ago and thought i'd treat myself to a new 197 after splitting up with the missus.
To get that £199 a month it had to be a new car to qualfy for 0% APR
I'd have to chop my 172 in with a trade in value of 3K
By the end of the loan deal there was a settlement figure of around 3K, you either pay the 3K there and then or take out finance.
So, you trade in your car, make the monthly payments, no probs. But then save up that 3K 'final' payment at the same time so you get to own the car outright. If you can't you then finance the 3K over the next 2-3 years, bearing in mind the car will be 5-6 years old by the time you eventually pay it off, massive depreciation so it's not worth what you've paid out on it.
Other option, give the car back after the £199, 2 years stint ends. Cool, so the keys are handed back, no car and you've lost the 3k car you traded in 2 years ago.
That's all without factoring insurance payment and running costs on top. I've seen mates buy new cars not thinking the deal through then end up selling on within a year when it gets too much for them.