When it comes to luxury cars, European manufacturers have a huge reputation for producing some of the best cars for comfort. Brands like BMW, Mercedes-Benz, Audi, and Volvo are known for their incredibly comfortable, premium, and plush rides, which don't skimp out on power, either. Of course, with luxury interiors and tech also comes a big price tag, which customers are more than willing to give for what they get. However, no matter how luxurious or powerful a car might be, it must be reliable.