That would be class. Open up all the Jeep and Toyota sizes. There's probably a million and one engineering reasons that prevent 17". None that prevent 18" as evidenced by JLR Aussie approving the caliper swap.

 

Well since you have asked lol...

SOFTWARE

• Ability to force OTA software update if one is available in the market (instead of waiting without explanation to be "chosen" for the update...)
• Full lane keep self steering, I believe L663 just has lane departure assist now
• Pivi Pro ability to adjust sensitivity of rain sensing wiper function
• Off-road view is user selectable as primary parking camera view when parking, with PDC on. (I select this every time I pull into my narrow driveway and garage to judge distance from front wheels to walls, but when you select off-road view the PDC sensors do go off as well...)

REDESIGN / UPDATE ON FEATURES

• Redesigned upper window seal on the 2/4 doors that mimics a rain gutter somewhat, when we open the door in the rain, line of water falls nicely on the seat leather every time door is opened.
• D90 rear seating redesign without the "what afterthought engineer should be fired in product design and engineering over this?" metal bar across the rear cargo area.
• Bigger side bolsters on front seating in high spec models ... "sport seats".

OPTIONS / CONFIGURATION AVAILABILITY

• P400 6 cylinder with 18" wheel option and brakes suitable for 18" wheels
• More than the few basic colors available on the V8 model. I don't want white, dark grey or black! Or at least Eiger for the grey.
• V8 with roof rails and 20" wheels option
• X model available with a proper light headliner instead of the Darth Vader black headliner (which is great on a 911 or the sports car but ... I like light ceilings on my Land Rovers... whatever the model)
• X model available with a Tundra or Khaki interior (see above headliner point)
• Ability to spec the $4500 mega RRS/RR Meridian sound system with the ceiling speakers in the high end models for additional cost.I miss the one I had in my RRS which was exceptional.
• Bring back the cool center sunvisor on 2021+ models

ACCESSORY IDEAS - LR can up their game to match what Grenadier is putting out there...

• 1" taller Expedition rack feet option that would work with the foldable fabric roof option
• Factory ALUMINUM (lighter weight ie not steel) rock slider option would be nice ... like what Sarek is putting out there
• Australia spec bull bar in US available thru US dealer parts channels
• Aux lamp switch panels and switches from factory (like Grenadier) with pre wiring to front and rear (like Grenadier)

 

I have quite a simple requirement - a separate power supply for the radio; something to keep it running for at least 3 hours whilst waiting for the wife to finish her shopping...................It can't be that difficult or even expensive.

 

My only request would be the right size wheel and tire to match the design language, and purpose of the vehicle. Or, at least the ability to add such. 33" is a minimum in the market segment today.

That being said, I know why thats not possible given the weight of the vehicle.

 

I have a full spec 110X and can't think of anything to except for more oem accessories like roo bar compatible with the adaptive cruise, aluminum rock sliders, fuel tank aluminum crash plate, rear light guards, aluminum hood.

 

Honest question (because I don't understand the request here) - is 0.8 or 0.9 inches in total diameter worth anything?

I have the base model with 255/70 18 tires on it which the online calculator tells me results in a 32.1" diameter. What advantages would that extra 9/10 of an inch gain me?

Not being a jerk - I'm looking to learn because I'm somewhat new to this

 

I'd like the ability to mount another spare on the hood - even though I'm sure there are a 100 reasons why that's not longer possible or allowed on modern vehicles

 

@DoctorofRocks - 9/10ths of an inch on a tire that is ~32" tall seems like not much. But the mathematics show that you are dealing with circles, not straight lines. The "meat" you have on that tire is only 7" between the vehicle and the road. As the tire rotates, all the rest of it is dead weight. In that 7", you are now increasing things by about 14%. I'd love to get 14% return on investment, 14% more mpg, etc.

But it also goes beyond that. The larger tire allows for more tire surface area when deflated. Ok, hate me/throw tomatoes, I know that Defenders don't need different tires, nor airing down. The point is, the Doctor is asking why a big deal re: ~1" of tire size. So the volume of the circle goes up by pi of the distance changed. So it's slightly less than 3.14 increase in volume (actually 90% of that).

I'm probably fumbling a bit of math and should defer to the math/engineering wonks out there - but my point is - more than you would think. Also, the "rule of thumb" for macho, er I mean standard off-roading starts at the 33" mark so there is that vanity point. Not saying the poster is vain, I'm pointing to myself in said mirror.

If you don't want to go off-road, won't matter at all. If you do, ~1" increase is a large increase. You can go larger but then you have to deal with the limits of the wheel well, get lifts, etc.

 

What you "gain" is:

1. A bazillion real off-road tire choices. Heck, there are vastly more options at 31" (Toyota 4Runner sizing) than the oddball 32". There is all of 1 "real" all-terrain in OEM 20" sizing.

2. More sidewall to prevent damage to those 20" wheels off the pavement. If you are going to make the brakes so massive that we are basically forced to get 20s, give us meaty tires.

3. A half inch more ground clearance. More ground clearance is always welcomed on the trail.

4. Vastly better looks. Particularly in 110 guise, the Defender looks a bit disproportionate. The tires are just a bit too small in relation to the vehicle. It looks goofy.


FWIW, I have no idea where grouseK9 got the idea that bigger tires would improve MPG. LoL, bigger, heavier tires are going to do the exact opposite mate.

 

I read it as 14% change in any metric is going to be significant. Examples; tire diameter, MPG, air-speed velocity of unladen (African) swallow etc.