Big luxury sedans are the ultimate expression of the luxury car ethos, offering every trick in an automaker's bag. You can expect an expansive interior trimmed in high-quality materials, incredible attention to detail, a raft of advanced technology features, and an array of powertrains with immense power. The 2019 BMW 7 Series checks all those boxes. It also has the other defining characteristic of a large luxury sedan: a jaw-dropping price tag. Opt for a higher powertrain and start fiddling with the options list, and the 7 Series can double its base price. The 7 Series is a very competent performer in spite of its size. Even the plug-in hybrid 740e has considerable power, and the transmission response from the eight-speed automatic is fantastic. The biggest drawback is a lack of road feel, which is disappointing for a BMW sedan. The 7 Series boasts an impressively smooth ride and exceptionally quiet interior, as well as a number of options for personalizing the climate for each passenger and standard seats that are comfortable and highly adjustable. The build quality is top-notch and refined, with exceptional-quality materials throughout. There's incredible interior space, and the extra-long doors make it easy to get in and out of this big sedan. The controls are easy to locate and use, and the iDrive technology interface continues to improve. The 7 Series offers an impressive array of technology, especially once you dip into the options menu. There's plenty of connectivity, but Apple CarPlay is oddly subscription-based and Android Auto isn't available at all. The standard accident avoidance tech is appreciated.