By base standards Tracks and Sunstreaker seemed to have a weird relationship. They insulted each other's finish and ranted about imaginary flaws all while tending to each other's paint and engaging in mutual scrubdowns in the wash racks like close confidants.
When Mirage first arrived on base he backhandedly complimented Sunstreaker on his finish and mildly insulted Tracks' wax job all while bemoaning the substandard supplies forced upon the base residents. The three immediately started comparing brands and routines reenacting the now obsolete social events where Praxian mechs charmed the nobility into letting the Praxian femmes hunt in their domain.