I had the chance to test drive one (Prerunner with #2TRD) yesterday while my '04 (same type) was being serviced. Here's my initial impressions.
Definitely larger inside and out. The extra space inside was welcome but I'm undecided about the outside appearance. The older style appears more agile to me.
Obviously more power from the larger V6 but nothing that will throw your head back. I didn't like the low pitch hum from the engine during acceleration. The engine compartment seems well layed out with the oil filter surprisingly uyp top.
Gas mileage is improved despite the larger engine according to the window sticker. Based on experience with my '04, I would have to see to believe it. Toyota seems to take a politician's approach to making mileage claims. They may not be lying but they ain't telling all the truth either.
Ride quality improved considerably, at least on straight highway stretches. I didn't get a chance to put it through some tight turns, etc. So, enough said.
Improved interior with more room side to side and front to back. The seats were more comfortable with side and adjustable lumbar support. The upholstery seems more durable with the choice of fabrics. The '04 shifter (automatic) looks like a toy compared to the improved '05 shifter. Everything looks more up to date including the sound system and climate controls. I liked the darker vinyl on the dash and just below the side windows.
I was really surprised to see the composite bed construction. It remains to be seen how well the plastic bed holds up but the concept should spell the end to those horrible spray-on bedliners. Good to see the increased number of tie-downs including those on the bed floor. The side storage compartments were cool even though I don't know what they could be used for. Guess what, a 110V outlet in the back that you can switch on and off from the cab. Nice idea!
Styling? Well, it's a truck. So, no awards in this department. I was told though that the sport edition has a hood scoop (functional?)
One new feature that I was especially glad to see but at the same time disappointed with how it functioned was with the extra side doors. They provided access to the rear area well enough but the build lacked a solid feel. The extra doors bounced or moved significantly when the forward doors were closed. I suspect Toyota will have to make some adjustments to their design in the near future.
That's all I can think of at the moment.