You can see its quick (and as far as I know only) appearance here:
I was never sure if this was just a prop for the commercial or an actual working vehicle. But if Subway was smart they would have gotten this thing on the road ASAP...and maybe team up with the Guac Mobile!
A year or two later this one-of-a-kind beauty was put up for sale. News broke on the Autoevolution website with pics from the Craigslist listing:
Looks like the glory days are well behind the Avocardo. It's got some slight bruising and is well past its ripe stage. But I think all it needs is a little TLC (and lemon juice) and I bet that it would be a great project for a guacamole enthusiast.
Here is the actual listing (UPDATE: I guess it sold. The add has been taken down). Feel free to make an offer. Thanks, once again to Uncle Frank for the heads up!