Hi Jason, do you still drive your IS? What's on the clock now? I'm about to buy one from 2015 with 210k km (130k miles) and reading this thread gave me a good confidence that I've not gone completely mad as some people I've discussed this with think. The car has a full service book from an authorized dealer and the battery is under warranty until April 2025. I hope to hear from you! Thanks a lot for sharing your success story with us here. What a car!