BST 
2016 Toyota Tacoma Access Cab SR5 4dr Access Cab 4WD 6.1 ft. SB (3.5L 6cyl 6A)
YOU WON'T FORGET IT'S A TRUCK
 Have been driving the 2016, 4WD, SR-5, 6 cyl. Tacoma Access Cab for about 2 1/2 years now.  I had a software update done for the constantly shifting problem and it helped a lot.  It shifts less frequently now and the shift points seem to be at a higher speed for each gear.  The software update is  TSB 0077-17.    The drone from the engine and exhaust is LOUD! The new Atkinson Cycle engine may have more horsepower, but it doesn't show. Acceleration is slow - much less than what I get from my 2013 6 cyl. Highlander. It rides rough! You definitely will know you are riding in truck. The step-up into the truck is high and awkward. The driver's seat is way too low and it's uncomfortable. It handles well and gas mileage is 20 -23 depending on the trip distance. Instrumentation, gauges, etc. are fine, but the temp control and fan speed is hard to decipher. The composite bed is nice and saves buying a liner. I use it as a truck and bought it for reliability, so it works for me. If you're looking for a quiet, smooth ride with barely noticeable shifting, you don't want a Tacoma. If you're looking for a reliable work truck, this one is tops.     I will note that with a yard of mulch or a half yard of crushed gravel in the bed it rides much better and the shifting is a lot smoother.  But for everyday use, Toyota could have done a much better job with the suspension, noise suppression and the transmission.  Mileage now (04/18) is 8000.   The truck's obsession with frequent shifting was annoying to say the least, but the software update has improved that greatly.   The engine/transmission matchup on this truck might produce good mileage, but it's a real nuisance to drive.