Which came first, the car or the lightbulb?

the lightbulb came first, by 7 years. Edison's carbon filament lamp burned for over 13 hours.

Side by side

the car

Benz's patent of 29 January 1886 is the usual date for the first practical petrol car. The vehicle's commercial breakthrough came from his wife: in 1888 Bertha Benz drove 106 km to Pforzheim without telling him, fixing the fuel line with a hatpin and the ignition with a garter on the way, and the resulting publicity sold the machine. Ford did not exist until 1903 and the Model T not until 1908.

the lightbulb

Edison did not invent the electric light. Humphry Davy demonstrated an arc lamp in 1802, and at least twenty inventors produced incandescent bulbs before him; Joseph Swan demonstrated one in Newcastle in 1878 and was granted a British patent, which is why Edison eventually had to merge with him as Ediswan. What Edison produced in October 1879 was a bulb that lasted long enough and cost little enough to sell, together with the generating and wiring system to make it useful.