Here are two commercials that Hanna-Barbera produced in the early sixties — one for Bardahl gas additive and one for Lion Gas. The voices in the Bardahl spot are Jerry Hausner, Gary Owens (as Bardahl himself) and at least one someone else. Nominations are welcome. The voices in the Lion Gas spot appear to be Henry Corden as the Frenchman and Shep Menken as the lion. The sputterings of the car engine sure sound like Mel Blanc but I find it hard to believe H-B would have paid Mel to come in and do them…and if you were paying Mel to come in, why not have him do one (or all) of the speaking voices? So maybe they lifted the sounds of him off some other track or maybe someone else did a great impression of Mel's automotive sounds. We report, you decide…