Darth Vader's Tie fighter
TIE ADVANCED X1

Darth Vader used this prototype at the battle of Yavin and used it well, he and the ship caused massive destruction under the rebels.
This prototype has a rear-deck spaceframe and reinforced durasteel-alloy hull built around a standard Tie(twin ion engine)Interceptor cockpit and Wing brace elements.
Almost just like the standard Tie Interceptor in many components, the Advanced X1 has a more powerful drive system.

The speed is slightly better than with the other TIE's, Vader's fighter has hyperdrive(what allowed Darth Vader to escape and survive the Death Star's destruction)and shields.
The shields get a lot of extra power.
The maneuverability is less than other TIE's but the ship can sustain more damage.

The Tie Advanced X1 has two heavy blaster cannons in front mounted position, like the Tie Interceptor.
It has not only hyperdrive systems but also a limited live support system.
Against the X-Wing and Y-Wing fighters of the Rebel Alliance in the Death Star trench Darth Vader could destroy one pilot after another.
While the X1 prototype has not been allowed to mass produce for the Imperial fleet, most of it's best elements have been modified for the TIE Interceptor.