Any non-race iteration of a model which is designated as a rally car, excluding the Escudo. From what I can find, the following qualify:
For example, the Impreza 22b STi would qualify, but the Impreza LM Race car would not. Also you cannot put dirt tires on your SVT Cobra R or some such. I'm trying to limit this to true Rally cars.
Focus Rally Car / 529hp / 1.53.859
Impreza Rally Car Prototype / 549hp / 1.54.568
Peugeot 206 Rally Car / 465hp / 1.55.683
Lancer Evolution VII Rally Car Prototype / 478hp / 1.55.828