The 2013 Up!

I recently gave up with Polo ownership and decided to try the 2013 Up! It's not actually a bad car at all. I loved my Polo's but I thought I'd give something more modern a try.

It's on finance, of which I pay monthly over the next 3 1/2 years. It's not ideal but after previous car issues, I couldn't risk it anymore.

I've owned the car now for coming up to 4 months now and I want to add a few reversible mods. I don't know if this is strictly allowed due to the fact I don't own the car yet, but I'm only considering things I can take off. I asked on the Up! Owners page but didn't get a response...

- Coilovers

- Alloys

- Roof Bars

- (maybe something to enhance the sound of the car - without being permanent)

(I already have fitted some wind deflectors)

My issue is, can I do any of this when on finance? Can I just keep the original parts? I intend to purchase the car outright at some time anyway. If it comes to the point where I need (for some reason) to put the original parts back on, surely I can just do that? I took the car from my local KIA dealership who seemed to have no interest in the used car itself. It has a year's warranty on it and after then I don't suspect they'll be seeing me until the last few months of the contract?

I'm not very mechanically aware, or have much knowledge of these things and I'm not trying to do anything stupid, I just enjoy a little personalisation here and there with every car I have.

I have my clubpolo sticker ready and waiting too. I still like to see other Polo's around and always keep an eye out for those who may be part of this site. I don't want to be the guy who owns an Up! But think's he's still part of the Polo ownership haha. I just miss the cars, but one day...

Any advice is appreciated. Recommendations and anything else would be great. Thanks!