Finally got enough Free time to go drive both the Non F and F Sport

both cars, were equipped exactly the same

Blind spot
Intuitive park assist
NAV
Cold weather

drove the Non F Sport first

played with the Eco to Sport mode, I honestly didn't feel much difference,
car drove exactly like I thought a $56000 Lexus would, smooth, but not soft, comfortable seats

Drove the F sport and the real difference inside where the seats, they really are much better than the non F sport, the power side bolsters and extendable thigh supports are nice

The one thing I didn't like as much is how harsh the ride was, I was shocked, I've owned a 3 series with M sport, an S4 with 19's and they weren't as hard a ride, maybe hitting 40, I'm getting old but I almost don't know if I'll enjoy the ride especially on the crappy NY roads

Might be time for the smooth ride of the LS! ;-)

Make sure that it has Michelin tires and that they weren't over inflated. I have a buddy that has a 2015 F Sport, and I'm surprised by how well it rides.

BTW, my LS rides incredibly Its a big jump money wise from the GS though.

I have a '15 GS FSport. I think it rides really well. I have the Michelin MXM4 tires.

If you're not particularly interested in the exterior design, Luxury gs may just be what you want. It's unlikely that you will feel the handling difference some claim. Comes with S/S+. Seats are even more comfortable for both driver and passenger. I drove the 15 f sports with Dunlop for half of a day and also found it quite loud and noisy. Psi is set to 35 as stated on the door panel. Maybe Michellin will help.

Bear in mind that the 2015 Luxury models have the same 19" wheels as the F Sport.

I thought my FSport in Normal mode floats too much. Now I can't drive other than in Sport +. Damn CT suspension made my FSport feels too floaty!

Really? Thanks for the info. I guess there's no more luxury in GS

Yeah they have a lighter color finish but they're the same wheels.

The non-f sport with Luxury package has even better seats for both driver and passenger... I have a non f sport with Luxury.. love it.. more features inside.

Yup I agree with this, I need to adjust mine, they're 40psi cold, and between 37 and 38 warm.

My 2015 f sport has Bridgestone tires, ride is way better then the last two acuras that I had and they both came with what could be michelins worst tire ever, the mxm4....what a crappy ride that tire gave

That's impossible....tire pressure goes up when warm, not down

Sounds like you may need a new gauge. Your tire pressure will increase as your tires heat up.

I'm scared...