This is 263PTK75 (a French license plate), a really cool car that I saw just down the street from our house. From the looks of it, this car may have been a contestant in the Paris-Dakaar rally, or some other sort of similar race.
So cool that I had to take shots from all four views.
Stéphane Picault read this page, and was kind enough to share some additional information with me about this car:
This car is a Renault 4L, and you can tell that it comes from Paris, because the license plate ends with "75". Every year, they run a race called the "4L Trophy".
You can read more information about this race at http://www.4ltrophy.com/.