The 0-60 MPH time gap listed
The 0-60 MPH time gap listed is based on actual testing by the same source. According to Mazda's Official Specs, the '16 MX-5 weighs 2,332 pounds. Fiat's official specs say it weighs 2,477, and that is the manual transmission 124 Spider Abarth (the other 124s are lighter). So the weight difference is 145 pounds, which is not really "several hundred." We point out the gearing is a factor in the fifth paragraph. Aluminum vs. iron engine parts relates directly to the weight difference you say is the key factor. Any 14 year old would know that.