Even an E-type Jaguar looks merely flash beside a really smart pony and trap.

The line contrasts modern, conspicuously expensive technology (the E‑type Jaguar sports car) with an older, more traditional conveyance (a pony and trap), arguing that true “smartness” or style is not the same as flashy display. It implies that refinement can lie in proportion, taste, and presentation rather than in cost or speed, and that what reads as elegant may be rooted in tradition and restraint. The phrasing also carries a faintly satirical social edge: the Jaguar is reduced to mere showiness when set against a well-turned-out, class-coded emblem of country gentility.