vehicular

adjective

1. 1

   Of or pertaining to a vehicle or vehicles, usually specifically cars and trucks.

   “Ernest had a fear of vehicular travel, and ended up walking everywhere.”

2. 2

   Of or pertaining to a language that is used as a contact language between two groups who do not share a common native tongue nor a common culture.

   “English is used as a vehicular language in many business settings.”