Speed Star

The Speed Star is a vehicle that appears in the Sonic the Hedgehog series It is Sonic the Hedgehog's personal sports car for racing competitions. It was built by Tails with parts left over by an attempted invasion by Dr. Eggman (according to the Sonic & Sega All-Stars Racing website).

Concept and creation
For Sonic & All-Stars Racing Transformed, the Speed Star's Car, Plane and Boat design was developed by artist Richard Tawny with the help of Scott Robertson (Design Studio Press) to feel like a true speedster capable of racing in any world, real or otherwise. The car was developed in Modo and was iterated many times between Tawny, the Producers at SEGA Europe and Sonic Team in Japan.

Sonic & Sega All-Stars Racing
In Sonic & Sega All-Stars Racing the Speed Star is a blue convertible. In the middle, it has two equal-sized depressions in both sides. On the bottom, it has a clean large white lining. Six "spikes" appear on it as well two on front with mirrors infused in each of them, along with four on the back, accompanied by two on the back. The bottom ones have taillights that have two sections; orange topped with yellow. On the front, it has Sonic's head from the "Sonic Team" logo. Below that are three head lights. The main one is a large, almost obtuse "U" shaped clear section with four bulbs inside it, two built on the right and left stacked on one another, and the other two headlights are on the bottom front on the car built slightly more into the vehicle one on the sides, a yellow bulb encased in white around a black surface. The back on the vehicle has two yellow top-white exhaust pipes around black casing. The wheels of the vehicle have an orange outer ring, a red middle ring, and a white inner ring around a red circle. The words "SONIC THE HEDGEHOG" appear on the tires.

Sonic & All-Stars Racing Transformed
In Sonic & All-Stars Racing Transformed, the Speed Star, redesigned by Tails, has less spikes, a slightly bulkier appearance and a slightly curved back with a capital S in the black part for added detail. It now has different wheels and has harder edges. Almost all spikes are removed, so the only ones left are two large ones on its back which could be another set of exhausts. For transformations, for water racing, it transforms into a speedboat, resembling outshore powerboats like 'King of Shaves'. Other features of the boat include a fin on the back, mainly for aesthetic effect and twin outboard motors that resemble his shoes. For a plane, it looks the same as the car but sprouts wings with jet exhausts from the underside, removes the wheels, reveals two fins like the car mode has the two spikes and replaces the front bumper with a strange looking nose cone with two jet engines on its sides.

Team Sonic Racing
In Team Sonic Racing, the Speed Star reappears as the racing vehi9cle used by Sonic in gameplay.

Archie Comics
In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Speed Star is a vehicle built by Tails and used by Team Fighters as transportation to and from the Chaos Emerald Championship.

Trivia

 * Sonic previously drove a car called the Cyclone in the Sonic Drift games.
 * When Sonic performs his All-Star Move, the Speed Star shrinks.
 * A Lego vehicle that resembles the car appears in Lego Dimensions. It comes with the Sonic the Hedgehog Level Pack and is called the "Sonic Speedster".