We have owned two previous Sienna's, 2004 and 2007. This 2017 is a big improvement in ride, quiteness, and technology. It seems much smother. Although it has an increased HP motor, performance seems about the same, but fuel economy shows a 10% improvement.
We replace 2013 FWD XLE with 2017 XLE Premium AWD. Ride is much much improved . Quality of interior compare to other minivans on the market is outstanding. Only issue/downsize is performance. Not sure if this is because of AWD or new direct injection motor/new transmission but old car was much more punchy. This new one is simply lazy.. you have to step on really hard to get any performance from it
I've owned our last Sienna for 12+ years. The '17 has many similarities, but feels like it's on steroids! Loving the ride, creature comforts and electronics. If any downside, I'd say while the ECO setting gives better mileage a find myself turning that setting off when driving around town as the minivan is much more responsive around town when its off. Overall, I'm very pleased with our purchase.
We drove a brand new 2017 (only 27 miles when we drove off the lot) as a loaner while our 2008 Sienna was serviced and I was curious to see what I would think of it given our current van is getting a bit long in the tooth. On the whole it was very disappointing. The engine felt really weak- my wife compared it the 1988 Corolla she drove in college- versus our surprisingly quick 2008 Sienna. Fuel economy was worse as well at less than 19mpg compared to about 21mpg with our current Sienna. The interior felt like a major downgrade with thin, cheap plastic surfaces. We also missed a lot of nooks and crannies- like covered storage in the door armrests. The seats were considerably less supportive and comfortable than what we are used to. On the whole I think we will stay with our 2008 Sienna for a few more years.
Acceleration is a bit sluggish compared to other minivans and cars. Gas mileage at this time is lower then expected but we still have under 1000 miles on it so it is not broken in yet. Winter driving in city condition is getting about 16.5 mpg