Final answer:
The illustration most likely shows hypoid gears, which are used in vehicle drivetrains to provide compact gear reductions and a low center of gravity.
Step-by-step explanation:
If the illustration in question depicts a set of gears in which one gear has an axis that is not in line with the other, it's likely presenting a hypoid gear set. Hypoid gears are a type of spiral bevel gear whose axes do not intersect. The hypoid gear design allows for large gear reductions in compact spaces, which is why they are commonly used in the drivetrain of vehicles, particularly for rear wheel drive, as they allow the drive shaft to be positioned lower, improving the car's center of gravity without intruding into the passenger compartment.