Both models share a Ferrari-derived 3.8-litre V8 with the Quattroporte GTS performance saloon, in a state of tune that produces 542bhp in the GTS and 582bhp in the hardcore Trofeo.
The GTS receives Maserati's Q4 four-wheel-drive system, allowing a 0-62mph time of 4.2sec and a top speed of 181mph, 5mph less than the Trofeo range-topper. The latter will be available in limited Launch Edition trim, just 50 examples of which have been set aside for the European market out of a total of 100.
Both models are now available to order, ahead of the Trofeo's UK dynamic debut at the Goodwood Festival of Speed next month. Prices rise from £104,900 for the GTS to £124,900 for entry-level Trofeo models. Launch Edition models are priced from £159,900.
Maserati claims 20.9mpg and 313g/km of CO2 emissions for the GTS, but has released no efficiency figures for the Trofeo.
Both models receive sportier styling than the regular, V6-powered Levante, although Maserati says the GTS is more sophisticated. New alloy wheels are fitted to mark out the models.
Inside, the GTS features a premium audio system and upgraded leather upholstery, while the gear selector has been redesigned. The GTS is also the first Levante to get full LED headlights – a feature that is likely to now be rolled out across the rest of the range.