basically its 3X OIL CHANGE ,2x spark plugs , and 3X replace brake fluid ( this does not make sense may be its typo they mean Check)
and one time alternator belt Only cover to 37500 mile
i never owned maserati before , so i'm not sure how much the cost for oil change sparks plugs. etc..
here is from the website
Pre-Paid Maintenance Program - Maserati USA
Levante Models 24 Mos. Plan 36 Mos. Plan 48 Mos. Plan
Engine Oil and Filter Change 2R 3R 4R
Hydraulic Power Steering Fluid Level 1C 1C 2C
Brake Fluid Level 1R 1R 2R
Engine Coolant Level 2C 3C 4C
Spark Plugs - 1R 1R
Air Filter 2R 3R 4R
Pollen Filter 1R 1R 2R
Cooling System 1C 1C 2C
Alternator Belt 2C 3C 3C & 1R
Hinges, Doors, Front & Rear Lids 1C 2C 2C
Interior Leather 1C 2C 2C
Brake system Lines 2C 3C 4C
Diagnostic Tester 2C 3C 4C
Brake Discs 1C 1C 2C
Brake Pads 1C 1C 2C
Headlights & Lighting System 2C 3C 4C
Road Test 2C 3C 4C
Action (R=Replace, C=Check)