Well I been a fan of x-11, since my first car: an 84 two-door citation. The difference is different motor (2.8 MPFI vs 2.8 Carbed), factor hood and rear spoilers, better steering and suspension, have 14" alloy wheels with citation imprinted on them with 215/60/R14 tires, bucket seats and floor shifter.
The current project car is an 85 x-11 with power windows and locks after my original 85 x-11 was hit by another car, but removed many of the parts from the damaged car to save money on the project and new parts freshen up the suspension/brakes. Waiting to build up funds for a paint job and few last parts to get her on the road before the next step: upgraded engine. Common replacements are 4.9L Caddy V8 and L67 V6 like it's cousin the Fiero. I would love to get one of those 327 V8.