Bmw 3 series insurance cost

I am a college freshman and I am planning to buy an used BMW 335i Coupe( under around 29,000
dollars). However, I have heard that maintaining a BMW is much more expensive than maintaining a
Lexus. Is it true? I am considering getting either an used BMW 2007 to 2009 models 335i Coupe or a
new Lexus IS250. Since my dad has a Lexus GS for years along with its best reliability rating, my dad
is more willing to buy me a new Lexus IS250 than an used BMW.
I personally would like to get a BMW 335i Coupe with manual transmission, but my parents don't
want me to spend a lot of their money on repairing or the maintenance.
Budget for getting an used BMW: under 29,000
If not, a new Lexus IS250.
I am most concerned about the overall cost of owning a BMW. What will be the exact amount yearly,
and what about for a Lexus? ( I know it is hard to compare between an used bmw and a new lexus,
but it is perfectly fine to compare two cars in a new condition, just to see the differences)
Could anyone please tell me the cost of owning an used BMW (around 45K miles and 25K for used
ones) and a new Lexus IS250.
Please tell me if you need more information to determine which car will be the best.