For trailering, the Larson Cabrio 310 2009 has the edge at 104 lbs dry weight versus 3 045 lbs for the Larson LSi 212 I/O 2004. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.

The Larson LSi 212 I/O 2004 has an official capacity rating of 6 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

The Larson Cabrio 310 2009 measures 126" wide, compared to 99" for the Larson LSi 212 I/O 2004. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

The Larson LSi 212 I/O 2004 has the bigger tank at 35 gallons, versus 16 gallons on the Larson Cabrio 310 2009. That 19-gallon difference translates to roughly 57–95 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Yes — both the Larson Cabrio 310 2009 and the Larson LSi 212 I/O 2004 are built by Larson. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.