Hyundai Sonata vs Lexus is250?

[KEV]

okay! I am deciding to buy a car, I only want to pay 20k. so should I get an used lexus is250 or a brand new hyundai sonata. I checked a lot of comments left by different customers and hyundai scored pretty well. I dont care about the brand, I care more about power, comfort, and luxuriance.
which one should i get, whats your opinion

thanks