After a twice round Nth Island in a month with the car, it performed perfectly. Amazingly. Great to get on the open roads and mix it up with the locals and other fast Euro cars, new RS6's, new M4s and give them a taste of the 1M. While moving away from E85 stations, I tried octane boosters in the fuel tank. While it worked for the engine, it was bad on my health, the stench and irritation with fumes coming back into the car with windows down was surprisingly bad. Anyways, car cleaned, LED lights installed into the cabin, external LEDs installed and coded and Blackline tail lights installed. The rear 275's wear showing minimal tread depth, time to try something a more chunky. Enter 295/30/19 Conti Sport Contacts. 2.3% less circumference, meaning it'll be like changing the diff ratio from the 3.15 it is now to a 3.22. The tire fits, but its getting tight. Could potentially do a 305. Its on a 10" wide rear rim, so fits the rim better than the 275 did for sure. The extra width should help with grip.
Still waiting impatiently for some other parts to turn up for the fuelling upgrades, but not a show stopper for now.