 Having been a loyal 4-Runner owner for over 20 years I was excited to supposedly upgrade to a newer version. I loved taking my stock 1995 4-Runner into the Colorado mountains off-roading, skiing, hiking and camping. Two years ago I purchased a Trail Premium version and this car is not what it claims to be, quality rugged or reliable. The dealership and the Toyota Customer Care Center know me by my first name due to the number of times the car has been in for the same issues, over 11 trips and counting. I know many readers will say this review isn't helpful but after reading about the issues search other reviews and you will find similarities, even the positive ones. I'm currently in the process of going to arbitration with Toyota because they can't and most importantly don't want to fix the technology issues with the 4-Runner. Toyota has been somewhat friendly and have tried to resolve most of the issues but you can't fix a cheap and poorly designed product. Almost everything that's going on is not unique to this one car they are for the most part related to the fleet.  The 2015 Trail Premium is grossly underpowered for its size which is a safety hazard when you need to accelerate. Never place the car in Drive, always manually shift through the 5 gears. This will make up for some of the marginal power performance and greatly improve the gas mileage which can stay at 14-15 miles per gallon when it's cold despite the manufacturer's claim of 17 to 21. Manually shifting I can stay in the 18-22 miles per gallon range and on one trip I even managed to get 34 mpg for over 75 miles.Systems such as the voice recognition, navigation and radio don't perform as claimed. It's not uncommon for these systems to freeze up requiring the car be pulled over and turned off in order to reset the entire system. I've had three radioheads replaced by Toyota in the last year, none of them including the latest remotely work right. The factory is currently working with the car to determine what the issues are. One Toyota rep was able to duplicate some of the same problems on his Tacoma. My 10-year old hand held Garmin is more accurate than the navigation system. The voice recognition system works accurately approximately 30% of the time even after taking multiple tutorials, reading the manual and taking it in to the dealership multiple times. Voice commands, directly from the owner’s manual, only work 50% of the time. Referring to the Entune infotainment system Consumer Reports stated "Toyota needs to go back to the drawing board", I agree. I love backcountry mountain roads and moderate off-roading. I no longer take this 4-Runner off-road as it's not designed for anything more than a dry level dirt road. The off-road dials and traction systems that come on the Trail version are a complete joke and total waste of money as they rely on marginal technology vs driving skill. If you want something remotely off-road worthy, plan on spending another $3,000 to $10,000 to improve the awful ground clearance, street tires and sheet metal skid plates which fall apart when driving in deeper snow. The car is easily high centered in 10 to 12 inches of snow and horrible under adverse winter driving conditions as it slides sideways easily and without warning.The car has a known issue of accelerating backwards after a cold start if your foot isn't firmly on the peddle, with force, when placing it in reverse. I was told by the dealership "if you think yours is bad try driving a Tundra". Not the answer you would expect given Toyota recently had problems with uncontrolled acceleration.Squeaks and noises this car has them. The moon roof started rattling within two weeks of buying the car. In order to fix the problem the dealership had to replace the entire driver's side mechanism and it still squeaks. The dash developed a consistent squeak on the driver’s side. It was caused by the wheel well liner and my car resulted in the fix for the entire fleet. Again, common issues.The headlights are a real safety hazard as they project a perfectly straight horizontal line in front of the car, below the line is lighted and above the line isn't lite at all. Driving on a less than level road the line is constantly moving up and down which obscures obstacles in front of the car, especially animals. Friends riding in the car have commented on the poor lighting performance.The paint is paper thin, brittle and is easily scratched. I've never seen anything like it. Other 2015 and 2016 4-Runner owners I've talked to have shared similar experiences.While the car may be within "performance standards" it's an over-priced under performing version of the older 4-Runners. My girlfriend nicknamed the car the "Fragile Butterfly" due to the paint and its lack of off-road capability. The car is best known by my friends as "Captain Crap". If you're considering buying a new 4-Runner, which I wouldn't recommend, I'd suggest renting one and living with it for a week...