Citreon produce a car named the Xsara
Quinn (Nevada), Queen (Rhode Island) and Quinault (Washington) are rivers.
Bmw
A quince is a fruit that's like an apple/pear.
quino
QX56 (Infiniti), Quest (Nissan) and Audi (Quattro) are car models. They begin with the letter Q.
Qvale is an Italian car whose spelling begins with the letter "Q" in English and Italian.
Quattro Quattro
There's Q-Car Company; or the E-Quickie Car, built by students at the Karlsruhe University of Applied Sciences in Germany. See the links below.
http://wiki.answers.com/Q/How_do_you_get_your_property_from_your_car_once_your_car_is_repo"
The name of the car that's start's with the letter Q is Nissan QuestAnother vehicle is the Quasar..made by Peugeot, pretty cool
Q45