35MPG, you must have a Diesel, and you think this is poor.... This is what I get on Mway, maybe slightly more but not much. France limit 130km/hr (~80MPH)
But overall is way below that more like 28-30MPG. Maserati figures are B...T way out.
Leave Start an stop off, it is best, mine is de-activated for good, this is an ANTI-Mechanical device, that wears your accessories, and engine quicker, not talking about the turbo, having to start and stop the whole time, we are lucky we have a ceramic ball bearing turbo which is pretty bullet proof.
But believe me, as a mechanical engineer, my advice is leave this SS OFF, shame it shows an orange logo on the dash, but you get use to it.