I like modding cars as much as anyone. However, I don't believe a Mirage is any kind of platform to put money into. It is a tool. A tool to save people money versus most other cars. A damn good tool in that respect. And as such, I recommend you put $0 into it, and let it do its job (saving you money). And when you have money, go buy a fun car of your choice to waste money on. Just my $0.02. Do you what you want, your money, more power to ya.
Or you could follow my investment guidance. I've been investing in hookers and liquor for years, the Mirage helps me maximize on those investments.
__________________________________________
View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.5 L/100 km ... 51.0 mpg (Imp)