Mother was originally Gladys Crabtree, mother of David Crabtree in her first life up until August 28th 1948 when she died of an unrevealed cause. She was later reincarnated into a 1928 Porter junker in 1965. She was found at a used car lot by her son David Crabtree who was told by Mother that the Porter was his mother reincarnated because she needed to help David in life. She was able to communicate to David through the car radio, which flashes in syncoption with her voice. She doesn't want anyone else but David to know that she is really his mother reincarnated because she is afraid that someone will cart her of to the Smithsonian Institution and put her on display as a talking car. She was later restored by David and painted fire engine red and had a new convertible top installed. She was frequently sought after by Captain Manzini (an antique car collector) because she is a rare, antique model car that is the last 1928 Porter model car around. Her favorite actor is </span>Sonny Tufts as revealed in the episode Leave The Drive-in To Us.
The "1928 Porter" touring car sported diamond-tufted naugahyde upholstery, oversized white tonneau cover, plush black carpeting, chrome windshield braces and half-moon hubcaps. Trapp and studio special effects man Norm Breedlove (father of land-speed-record-setter Craig Breedlove) modified the car to give it an elongated engine compartment, palladian-style brass radiator with “Porter” script, running board-mounted spare tire, outboard fuel tank and antique cane-clad trunk. (It was later fitted, as needed, with special effects hardware such as an oil tank drip to simulate a smoking engine and "tear ducts" in the headlamp bezels.) Off-camera operation of electrics was by umbilical cable. The signature features gave it an anachronistic look, resembling cars of earlier eras.
The power train was the rod-grade 283 cu in V8 (Chevrolet small-block) engine mated with Powerglide automatic transmission. The ‘Porter’ was registered (as a modified Ford) in 1964 with the contemporary yellow-on-black California license plates PZR 317 evident throughout the show's run. Though it bore a few design similarities with the FRP Porter, which may have suggested the tv car’s moniker, it is rumored that the car was named after the show’s production manager, W A Porter.
When series production was approved, the Grabowski rod was retained as the ‘hero’ car, and a second—-‘stunt’, or special-effects—-car was commissioned and built by celebrated car customizer George Barris, whose Barris Kustom Industries licensed it to AMT for model kit production (an inaccurate rendering) and also toured it after series wrap with other of his creations. The stunt car, not conventionally driveable, was ingeniously equipped with apparatus to let Mother "drive herself" via a system of levers and mirrors operated by a short human driver concealed on a tractor seat below the removed rear floorboards. It also had other special mechanical features such as gimbaled headlamps.
Both cars had the dashboard-mounted radio head with flashing dial light through which Mother "talked" (though only to her son). These scenes were filmed with a stand-in; actress Ann Sothern’s voice was dubbed to the soundtrack in post-production. Generally, the hero car was used for driving shots and close-ups, and the stunt car for long shots and special effects sequences. Either was available as a stand-in in case of mechanical breakdown on set. Though made to represent one car, they can be distinguished by minor details, and actually appeared together in one episode.
Additionally, a third car was used in filming, representing both the dilapidated car-lot Porter of the pilot and, in another episode, a “1932 Porter”. This car may not have been complete, and its existence and whereabouts are unknown.
The hero car is currently located in Edmonton, Alberta, Canada. The stunt car was once owned by casino giant William Harrah, who had one of the largest special-interest and antique auto collections (Reno, Nevada) of all time. After Harrah's death in 1984, the auction catalogue advertised the lot as having a carnation red body with white top and created from parts of a Ford Model T, a Maxwell, a Hudson and a Chevrolet. Following ownership by Rear View Mirror Museum (Nags Head, North Carolina) and later Herbie's Antique & Classic Car Museum (Mount Pleasant, South Carolina), the stunt Porter was on display in Star Cars Museum (Gatlinburg, Tennessee