I've now fitted the 18x11 wheels on the rear, and I have been considering what I should do for the front.
What I currently have is 17x9 with 245x40x17, and I have limited semi slick tyre options. The offset is +45mm and I have 40mm spacers fitted.
I thought about getting a pair of wheels made for the front that are the exact size needed, and match the rears, which are Forgestar CF5 deep concave.
When I bought the rears, they included a pair of 18x10 +11mm wheels that match, though they weren't the size and offset that I wanted.
After a lot of calculating and pondering, I have decided to use the 18x10 Forgestars on the front with a 265x35x18 tyre. Most of the semi slick manufacturers make this size. I will need to use a 20mm spacer for them to clear the coilovers.
They will stick out by another 26.7mm, and although I have a lot of space under the flares, I will need to cut more material away from the front of the arch so that the tyre will clear it when turning.
There will be a bit of Glengineering required, though it shouldn't be too much of a stuff up.
This will be the first time that I have had a matching set of wheels!
I love the look of the Forgestars, though I'm worried that they'll make my brakes look small.
That's all for now. I'll provide an update after my 24th of March Supersprint.
I have borrowed a mate's GoPro Hero5, so look forward to seeing some 4K in-car video.