Interestingly I took the car in for a groaning sound from the front left. Turned out it needed a new upper control arm and lower lateral link, they replace both left and right under warranty as apparently this is a common fault in 2019 models. While there Tesla said they had some Michelin Tyres in stock and quoted $404.35 each plus GST which seemed reasonable. Also they said the front drive unit was seeping oil so they have ordered parts under warranty to replace them. The service was awesome, thanks Christchurch service center.