MX-5 as a everyday car

Hello, I’m looking for a car for my girlfriend. She has to drive 20km to work (and back again) soon. I thought that a MX-5 could also be considered for this. Would a MX-5 be recommended for this? annual mileage max. 17,000km there is also a hard top for the MX-5, because the car is also driven in winter. I also thought about a gas conversion. did someone have it done? Which years of construction are especially recommended and which ones are not? Thanks already In advance, David