My daughter turns 16 this July and we have been looking at cars. It's obviously her first car and she wants a 2000-2005 Toyota Celica, I want her in a tank. Daddy's money, daddy's rules. She doesn't like the look of Volvo's from the 90's but she does like the 300E's (124). My question is how many miles can one expect out of the engines in these cars? When actually looking at one of these, anything in particular to look for or ask about. Though I alreay have a gas MB, it's a V-8 from the early 80's and my other Benzes have been Diesels.
Any tips/help would be appreciated.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member