This iteration of the Sienna rides comfortably and quietly. Further, its powertrain is smooth and strong and returns good fuel economy. The finely detailed cabin is comfortable. All-wheel drive is optional, but we've had many complaints about the powertrain's fast-wearing run-flat tires. Although it has sound handling, the Sienna could have been more agile and braking performance was disappointing. On the other hand, crash-test results are outstanding.