Well, he did and it was the Supermobile!
Premiere of the Supermobile
The Supermobile was an extension of Superman, made of Supermanium, allowing him to keep his powers under a red sun and use his powers through the vehicle, with vents for his super-breath, a scope to use his microscopic, telescopic, heat and x-ray vision, monitors that work with his super hearing, and telescopic robotic arms that Superman can use his super-strength with (along with the vehicle's invulnerability and flight abilities).
Titano in Superman #324 (June, 1978)...and it mostly being regulated to limbo, other than an appearance in the future in All-New Atom #8 (April, 2007), being up for sale in Funky Flashman's used car lot in the Dr. 13 part of Tales of the Unexpected #5 (April, 2007)...
Super Friends Supermobile
The Supermobile appeared with the Phantom Zone Villains in "Terror from the Phantom Zone" in October, 28, 1978, "Lex Luthor Strikes Back" from September 29, 1979, and "The Krypton Syndrome" from September, 24, 1983.
Toys of the Supermobile
The Supermobile did make it as a Corgi toy, to go along with the Daily Planet helicopter, Metropolis police car, Superman van, and Daily Planet delivery truck....
...and as a part of Kenner's line of vehicles, to go along with their Super Powers figures (though this Supermobile found itself altered a bit, lacking the arms and instead having a "Krypton Action Ram").