2003 Toyota echo how long will it last?

I got a 2003 toyota echo I've had with very low miles now it has 100,000 miles never did any tune ups or maintenance. has been very abused has a 1.5l automatic with timiming chain. Never did anything with it but all i did with is just oil changes every 5,000 miles and the cheapest brand oil has been driven on the red line alot. how long do you thing it will last with out maintenance.
also it has oversized wheels 5 times bigger then original
 
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