Electric Vacuum Pump

No, but I have considered one, mainly for my M-B diesels if the engine driven vac pump fails (expensive). You can find used electric ones for newer diesels (V-W, M-B, Audi, ...) on ebay for ~$50. These are used for their power brakes and mount in the engine bay. Ignore the smaller ones for door locks (mount in trunk). You can also pay ~$350 for a new one for after-market.