Just got back. Had a good look at the Levante and sat in it. Its definitely got a presence. They had the Jaguar F-Pace as well and the Levante looked sleek in comparison.
Talking with the salesman they can't commit to a date for the petrol and expect the majority they sell to be diesels. One chap looking at it asked if it was petrol and when told no said he'd never buy a diesel. They have fed this back to Maserati but as yet nothing official on petrol availability. It seems that they don't want to have people waiting for petrols to take away from sales of the diesel.
It didn't seem as easy to get in an out of as the Ghibli but that could have been the height and seat position. Would have to check this again in the showroom with fewer people around.
The thing is festooned with cameras: fforward facing, rear facing, wing mirror cameras. Useful for off road I suppose. The one there had the plastic trident and its not that good to look at close up. This contains the lower forward camera and the radar for the radar cruise control. If you don't take those options then you get the same trident as the current QP and Ghibli.
Finally here are a few pictures I took: