If it comes from inside your car, it might be a cause of serious concern as fuel contains sulfur converted to a neutral-smelling compound during combustion and afterward in your car’s emission system.

Your car could smell like rotten eggs because of the battery or transmission fluid, as both contain (or may contain) some derivative of sulfur.

The coolest Easter egg in the new Renault 5 isn't in the car as standard. Instead, it's hidden in the official options list. The 5 is a retro-modern reinvention of a classic, and it's already ...

The same car features an ice scraper in the fuel cap and a trunk light that can be removed and used as a flashlight. In many cases, easter eggs are similar to those in the TRX though.

British automaker Jaguar doesn't just make excellent cars -- they also load them up with Easter eggs for drivers with a sharp eye. These are the coolest.