Dear Toshimuri,
I know you like to think that you're doing the sensible thing, really I do, but moving this question over to the window licking section is like moving a discussion on fine art onto the Jeremy Kyle guest forum.
It's common knowledge that all window cleaners sign on, work for beer money and drive Austin Montego Countrymen estates with no tax in the window while running on red diesel, unless of course their work is only local, in which case most throw a set of stolen pointers on their shoulder, and head off on their bike with bucket and scrim hanging from the handle bars at first light in the hope that they won't run into Sandra from the Job Centre on their way to their first customer, therefore the chances of one of them having driven anything newer than 25 years old is at best slim (unless it was stolen), so please revert this post back to off topic for sensible discussion.