Various good information that PityOnU brings up. I vary a little bit, but his info is good in my opinion. The weak links to me are a) the bicycle tires these cars run. Especially what I hear about the Enasaves blowing sidewalls. And, b) the chassis ability to deal with jarring inputs and or swaying at high speeds combined with heavy (towed) weight.
However, although I think the Mirage can haul (relatively) heavy weight, doing so is just asking for trouble if one is running the interstate, on a hot hot summer day, with Enasaves, and not having maxed out or nearly maxed out the cold tire pressures before towing. Lots of air in the tires keeps them running as cool as they can run, so you want to blow them up for minimizing temperature increase and maximizing stability. But where is the threshold as to what is heavy in a Mirage? That's complex, lots of factors. But I estimate my 5'x10' trailer empty to weight 875 pounds. And it tows it rather easily.
As far as the gauges go, again I agree with PityOnU. It would be nice to be able to display tire pressure and/or tire temp on all 4 tires at the same time. If you see one tire's temp spiking higher than the other 3, you know you have a problem before it fails. And if I had a CVT, the CVT fluid temperature would be something I'd be interested in keeping an eye on.
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View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.6 L/100 km ... 50.9 mpg (Imp)