Tire /Rim size

[eomak]

Hello. Have a question if anyone has seen or done themselves on these cars.. for the rear's.I have a 19 inch wheels on my car now with 18mm spacers in the rear. The wheel/tire fit/clear everything even without spacers in the rear. My size right now is 275/35/19 10's.. I am trying to go for that wheel look that fills the whole area giving it a really mean aggressive looking stance. I am not looking for track performance driving or ride quality.And my fenders are rolled.Looking for just crusing around town and some local car shows. I am looking at same rear wheel but in a 20inch 10.5 rim. And the tire size is a bit pricey.They would be 285/25/20. so it'll 19's in front and 20's in rear. I think with the 20 and lower profile 25 side tire..over the 19 /35 it should be very similar in height? as to what i have on now?/maybe just a little more of the tire going up into the fender whell .no? thanks if any info.