I'm sorry, I don't think I quite understand what you mean here. There's lots of choices in various sizes and offsets in that thread beyond the Mitsubishi factory sizes for the Mirage. The Mini Cooper rims are my favorites.
Re the 80s BMW alloys, now wouldn't that look great? Love the 80s 3 and 5 series cars, growing up my friend's mom has a manual red 3 series.
The 4.5" wide rims serve fuel economy, the great defining aspect of the Mirage design. One point that has been made is the 165/65R14 tires can be hard to find, but going to either wider tread 14s or 15" rims seems to increase the number of tires choices available. However, changing the tire size to something larger can impact fuel consumption.
Forum member Top_Fuel has a great article about changing tire size up to 15" rims.
Fuel Efficient 15-Inch Wheels and Tires
It's well worth the read.
Definitely the ones I was thinking of, and I can still picture them on the Bimmer. Covers the brakes nicely too.
Tires can and do affect fuel economy, it's true.
But, I have 195/50-15 very non-economy tires on my Mirage, and I regularly get 42-45 mpg around town. 36.5 is sort of my norm if there's traffic and I'm not thinking about hypermiling. And I've seen as much as 56 mpg on casual back-roads trips.
The driver has more impact on fuel economy than the tires. All else being equal, sure, a good eco tire might get you 3-4% better economy than a non-eco tire. But, the DRIVER is the difference between achieving the EPA rated fuel economy, or 40% less than that... or 50% more than that.
Simplify and add lightness.
I think I always get better mileage in warmer weather than during the winter.
That's sort of a mix of driving, but not much big city driving at all. That's with a 2017 Mirage (manual) and factory size tires. I attribute the difference to different tires, changes in gas, & a colder running engine. I don't think it is any one thing. MPG isn't everything. It really depends on where you live, & what you need your car to do for you.
If I lived in warmer climate year round, I would focus on LRR tires. Expensive LRR tires, however, may not be the best choice for the winter ridge road (shaded from the sun) that I must climb to get home every day.
Although skinny tires don't usually give you the best ride, I do believe they do better on winter roads (especially with small FWD cars like the Mirage). Thus, a person has to decide what is best for them. What may be best for someone living in Florida may not be the same as someone living in Minnesota or Canada.
It fun to hear others thoughts on tires just the same. We've had some messy roads lately. My wheels are really dirty right now. Since I have cheap steel wheels, I don't really care! If I had nicer alloy wheels, I still probably wouldn't care!
I can't say that I am fan of hub caps, & mine may disappear some day. Steel wheels can have a more finished look. I've had 1st and 2nd generation Honda CRV's that has steel wheels that looked decent without hubcaps & held up ok. I wish the Mirage came with those as an option, but not a deal breaker to me.
As far as covering up brakes, all cars have brakes. I really don't think the Mirage is any different than most other cars. I hate rear drum brake, but they don't stick out worst to me. If your goal is to cover the brakes, it's hard to beat steel wheels with hubcaps. Then again, I am not a big fan of moon hubcaps. Those are probably my least favorite look of all. Everyone is different, & that's why we have choices I guess!
My Ford Escort had the originals til the car's end, they serve a purpose, even just for the looks. Those full cover moon ones sure are different though aren't they!