My wife and I have been loyal BMW customers since 2004. Her recent lease of a 2017 X1 has shown some problems with the product. At 16.5k miles she was told her front tires have less than 5/32" of thread. At 23K miles the tires are now flat out dangerous. Also at 23K miles her front brakes are giving her a warning. She does less than 1K miles per month, the lease is up in 8 months. I've owned all manner of cars since 1970 and, as stated, BMW's since 2004. At NO time in the past 49 years have new, original equipment tires worn to the point of hazard, in under 23K miles. At NO point in 49 years has any car needed new brakes in that same window. I've tried working with the dealership, they have offered some concessions but still over $1000 in needless expenses for a car that is touted as premium. As of this writing I have contacted BMW North America directly (as, purportedly the dealer has as well) and they have spurned any help with tires and have yet to be able to explain the decline in the product. The dealer rep did say "improved technology" could be responsible for the "change"...really? improved technology creating a lesser product? I'm hoping this venue will cause the corporate folks to look into a product that seems to have taken quite the slide.