Yes but any Caravan had a pushrod engine which means it makes over 200 lb/ft of torque at low rpm, which will handle weight easier than a OHC engine that needs to rev to make power. Especially a smaller engine like the Mazda's. Plus the Caravan had the option of 2 sizes and more than 1 engine. This didn't.
The Caravan with the 3.3L engine:
HP: 180hp @ 5000RPM
Torque: 210 lb/ft. @ 4000RPM.
The MPV:
HP: 200hp @ 6200RPM
Torque: 200 lb/ft. @ 3000RPM
They both seem like they are similar in the end, with the Caravan losing out in the upper end (HP) and the MPV losing out in torque. BUT it does come at a lower 3000RPM vs 4000RPM so it actually doesn't need to rev as much as the OHV engine in the Caravan. Also, don't forget that the Caravan weighs 200lbs. more than the MPV.
We had a 2002 MPV for about 6 years and finally this month traded it in for a 2010 Mazda5. The MPV was a very nice change from other minivans in that it really was a sporty drive (well, relatively speaking). Turns were very sharp and crisp, it was a breeze to park in tight spaces, and with the 3.0L engine it was peppy when you were carrying just a few people. I drove both the Odyssey and Sienna and while they do have more power, you could also feel that they weighed significantly more. We had to trade it in though because it was at over 200,000km, and the ignition coils were starting to go and a ton of rust started to develop all over the place.