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Cadillac’s Tunnel ad is one of our collective favorites here at the GM Authority global headquarters. The clip highlights the sports-oriented personality of the first-gen Caddy CTS and does so in a very simple yet upbeat way. And if nothing else, the commercial exemplifies Caddy’s constantly-changing mottos: this ad presents the Break Through tagline, after which Cadillac began to use the Life, Liberty, And the Pursuit campaign. But even this one may go away as Cadillac’s newest ad agency gets ready to launch all-new print ads and video spots.

In any event, watch the ad after the jump!