65 Sport Yacht - 67' 2" overall, 16' 8" beam, 5' 3" draft, 83,357 lbs at half load. Twin Volvo Penta IPS 1200 at 2 x 900 HP on pods, 924 gallons of fuel, 211 of water, three cabins with a fourth optional across four en-suites plus crew, up to 35 knots. The distinguishing features on its own page are the SkyHelm - upright with an IPS docking joystick for manoeuvring, lowered into carbon-backed seats for running - a fully appointed crew cabin located forward of the garage, and a Beach Club specification achieved by carrying the tender on the bathing platform so the vacated space gains direct sea access, a bar, a fridge, a BBQ and free-standing seating. Platform twin of the Predator 65.
75 Sport Yacht - 75' 8" overall, 17' 8" beam, 6' 2" draft, 103,396 lbs at half load. Twin MAN V12-1550 at 2 x 1,550 HP on shafts, 1,268 gallons of fuel, 211 of water, three cabins with a fourth optional across three en-suites plus crew, up to 40 knots. Eight and a half feet longer, roughly 20,000 lbs heavier, shafts instead of pods, five knots faster. Its own page describes a traditional second helm on a spacious flybridge reached by a stairway with companion seating and a chaise-longue sunpad, a spacious foredeck with seating and a table for six, dual steps from the bathing platform to the aft cockpit, a tender garage sized for a Williams 395, and a double-piece windscreen. Platform twin of the Predator 75.
The step between the two is the largest single jump in the Sunseeker performance line-up: eleven inches more beam, eleven inches more draft, 20,039 lbs more at half load, 344 more gallons of fuel, a change from pod drives to shafts, and five more knots. It is also a change in head count - four en-suites and day head on the 65, three on the 75, which is what Sunseeker publishes and worth reading twice.
Neither boat gains anything on the specification over its Predator twin. If a broker tells you the Sport Yacht is roomier, faster or heavier, ask which published figure they mean.