The End Of Lexus As We Know It? - Which carmaker has the best build quality in each segment now?

I came across this video discussing the fall of Lexus and thought I'd start a discussion about who has the best build quality and reliability.

The End Of Lexus As We Know It?

In the past Lexus stood for "the relentless pursuit of perfection" and exhibited what the Japaneses call "Kaizen" - the seeking and striving for continuous improvement. In the past I regarded Lexus as being the ultimate luxury vehicle - luxury and "overbuilt quality". I aspired to be able to afford one, one day, in my twenties during the '90's.

For some people "luxury" means having a vehicle with bulletproof build quality and reliability that is easy to maintain that won't leave you worrying about repairing your vehicle and spending time taking it to the mechanic, and Lexus (and Toyota) used to embody that.

• What is Lexus's future? Will Lexus return to a focus on the build quality, reliability, and refinement that gave it an identity or will it just become another lower profile "also ran" brand like Infiniti and Acura?

• Which carmakers make vehicles with the best build quality and reliability in each sector today? For each vehicle segment, who makes the vehicle that will be cheapest to maintain and most reliable up to 250,000 miles? Which ones are built to last to 400,000 miles? (Given current trends, the answer might be "none of them".)