Tim, 4 wheels plus a steel body compared to 2 wheels and no exo-shell gives an answer. 3 wheels provides a mid-point but if you've ever been driven through Delhi or Bangkok you'll know how terrifyingly "safe" these are. I'm strictly a 4 wheel driver for work although I do venture on to two wheels when rarely it doesn't rain. Stick with your instincts.

I'd avoid being drawn into such a specific issue. The employer should(?) have a wider travel policy and system of expenses, then again in a global sense there is no real opportunity to set any sort of standard. I take it your talking business and not free leiure time outwith business hours (frolic of my own type of thing). In my own limited experience, if there was no reputable agency or hire car firm, the client would pick me up and take me back to the airport/hotel , or sometimes send a chaffuered vehicle. That sort of arrangement though does tend to depend on who's buying and who's selling!