A site that shows car costs/lease prices from the past?

I'm looking on asking my parent to buy-out her lease to her Nissan Altima. I believe it is a 2008, as her lease is up in august, and usually leases are 36 months. Although it could be a 2007. It is a Altima Sedan 3.5SE.
If anyone have a site that can give me that would show like, leasing prices compared to buying prices. I would love you forver.
I would just go ask her, but she got a higher position at work this week, and she's super busy, and i can't ask her in person cause she likes 8 hours away.
anyhelp works! thanks!

 

Normally most sites charge a fee, from the adverts i've seen and such...

If your going to spend money on a car then pay the fee.
all you need to know is the cars license plate number and you'll get a detailed history of the car ( supposedly )

In the UK anyhow, presuming your from the UK.

 

I mean, I know the history of it, it's my mom's.
I figured it all out though. So this can be closed.