Renting a Speedster / VX220 Turbo, advice needed

[TT]

Well, I just discovered that not far from my home, you can rent Speedsters (VX220 in uk).

You just have to be 21 yo and have your license since 2 years.

The 2.2 147 hp costs 250 CHF / day (around 110 £ or 185 $)
The "turbo" costs 300 CHF / day (around 130 £ or 220 $)

Dang, I'm tempted. I still have no idea about deposit needed or km allowed during the 24 hours (and extra costs)...
But the price is not completely crazy if you consider renting a Boxster (not the S) cost around 500 CHF / day here in lausanne (220 £ or 370 $) and a Murcielago is a wooping 3000 CHF (1300 £ or 2200 $)

Ok, tempted but not sure.. even if 300 CHF is not really impossible, I can think of many other interesting thing doable with them, you know...

What should I do? Considering I don't find money on the trees usually?
The VX220 turbo got some incredibly good reviews and evo also tested it againsts the Modena! So I'd really be interested in having it with me 24 hours and maybe doing my fav mountain pass with it...