Even on the nd/nd2 MX5 the RF weighs over 100 lbs more than the soft top and that is on a roadster design from ground up
Adding even more weight to an elephant...
The Mach-E GT starts at 1 million SEK here.... with the the crappy currency we have that equates to 93k USD
To put it in perspective the S550 GT PP was 360k SEK when introduced :( and a 2022 GT PP1 starts at 600k.