yeah from the back, there really isn't a way unless you can read the badge. From the side, obviously the brakes is the answer. and yes the smart *** answer is that you could race them. If it beats you, then you know.

 

I see most 250 in my rear view mirror. The 350's I smile and nod at them through my passenger window.

 

Don't take it personally coz it was meant to be a joke... (smiley face)

 

Yea, as everyone else said... looking at the brakes is about the only other way besides the badge.

 

Odds are that most IS's are 250's just based on numbers produced so that is what I assume until it can be verified visually (brakes or tag). But another general rule of thumb is if a young-ish girl is driving it will almost always be a 250. That is just the way it is in my experience. There are three or four IS 250's in the building I live in and all are piloted by young professional women.

 

braaaakeess?????? can anyone show me the difference?

 

Without looking at the badge while moving, there is not other way to tell whether it's a 250 or 350.

I have tried time and time again and I can't tell. The worst part is that the 250 badge somtime look just like the 350. The number "2" and "3" on the 2IS are hard to distinguish even at a small distance. You have to actually up-close to really see whether it's 250 or 350.

But, it's not really an issue for me anyway because I have a 350

 

IS250 Brake:



IS350 Brake:

 

can't miss minds from front or back my plate says is350...

 

Yeah. Try doing that in Downtown LA rush hour traffic.

 

This pic right here makes me wanna wash my car right now!

 

From behind? Badge. Even from side/s it's hard to tell if the caliper/s is/are big(350) especially if the car is moving fast. Speed? If I wanted to race I'll buy a car suited to race.

 

Yeah. Sure. ...... ... ........ .......... ........ .....

 

maybe lexus should start selling huge decal stickers that say '250' and '350' so people can stick them on their rear bumpers or something

 

brakes is the best way, you ahve to get pretty close to see the numbers on the trunk lid