Same issue on brand new car (300miles) car started shaking a low (idle) and cel went on. Hope it is not a serious issue and tightening the plugs will resolve with no other side effects. Talking to Justin in San Jose in the morning. More as it develops.Not big on forums but bought my Ghibli in Redwood City. Absolutely the WORST customer service. Immediate problems with my car from day 1 (bluetooth did not work). Check engine light started flashing and car started shaking. Called Roadside assistance who picked up my car. No call from Maserati for 4 days. I called them to make sure my car was received and only received attitude from Service manager. NO software update for 2 weeks apparently and engine problems are supposedly due to the spark plugs.
I like the car but hate the service dep't at Redwood City. I will try San Jose next time. Audio SUCKS despite "premium" upgrade.