If you want to have a civil conversation with another car owner, it would probably be best not to make comparisons with the car you drive, especially if that car is in the same class. You haven't noticed how defensive us Spark EV drivers get about our cars? And with good reason! I'm willing to bet that a lot of millennials (including myself) are buying these cars, which means it's probably the biggest investment we've ever made on ANYTHING, so it's not surprising your comments were met with outrage, even if it doesn't seem logical. There seems to be a lot of adamonesty between the different EV brands, which really shouldn't be the case. We should all be united against the gas guzzlers and the states that don't force auto manufactures to sell EVs.
So in sum, if you have questions about the Fiat, just ask without invoking comparisons with the Spark. You don't need to make any comparisons if all you want is more info; keep your comments to yourself if you think the Spark is better, or boast over here on these forums, we won't hate on you for that.