Add Car Rental Widget from Landing Pages

![1414683210](https://cloud.githubusercontent.com/assets/708296/4846205/2c1b5582-604a-11e4-80ab-fec7b79cb81e.png)

Yeah, I agree it's more verbose, but performance is definitely a concern. I've double checked though and the currency list is only 118 items long so should be fine.

I'll do a quick refactor to clean up this `data-currencycode` thing as well.