Yes, our rules are asinine. It's all a typical NY money grab. If you really want to know, here's the logic (not):
Commercial vehicles are not allowed on Parkways. Parkways are mostly a Long Island thing (Long interesting story how that is. But too long for here) but unfortunately they are most of our major freeways. Recently, they changed the law to allow pickup trucks under 6,000 net to use passenger plates, so they could go on parkways. Prior to that a pickup needed a cap and rear seats to be considered a passenger vehicle otherwise it carried commercial plates. (And I HATE caps.)
So far so good, the square is just under 6000 lbs net. BUT! It's owned by a corporation, so by law MUST be registered commercial regardless of curb weight, cap or seats. It also gets whacked double for tolls because being "commercial" it's registered weight is now GVW instead of net which exceeds the 7000 lb maximum on bridges and tunnels so they charge per axle.
Makes perfect sense, right?
The TDI is a '98. Not one of the cheaters. Frankly I'd love to have one of the cheaters, they had 50% more HP and still got great mileage. A friend in Maine told me the dealers were fixing the bought-back ones and putting them on the lot. Seems the mileage doesn't suffer that much so they're still desirable. I'm tempted to get one and keep it on ice in case of emergency.