Well I just got back from test driving the NAH and although it and the TCH are both based on the same synergy system, they are very different vehicles. The first thing that separates them (at least in Canada) is that the Altima has no options, unless you count colour. No leather, sunroof, navigation, fog lights,... The interior of the NAH is sportier than the TCH and available in black (one of my biggest issues with the TCH). Looking around the interior, I felt the overall fit and finish was better than the TCH's I've seen so far. The dash was clear and the instruments easily readable. There is an MFD, but it did not have a button on the steering wheel to switch between displays on the MFD. Instead it had 2 buttons located approximately where the AC eco button is on the TCH. One simularity between the two was that the NAH also did not have a tachometer.

When I started up the NAH, I left it in park for over 5 minutes and noticed that the ICE kicked in and never shut off like the TCH. It was not until I depressed the gas pedal slightly when the ICE shut down and the NAH motored along in ev mode. I knew this because the MFD said so. Which brings me to another big difference. There is no animated graphic to tell the driver what mode it was running in. Pressing the display mode buttons, did not change the MFD but rather brought up a message saying the vehicle had to be stopped to make any changes!

Once I got the NAH going, I noticed that there was a significant amount of road and engine noise. The suspension was much more taunt and the steering response was much more pronounced. I also noticed that the NAH seemed to run on its ICE more than the TCH and it was harder to make the car operate in EV mode unless it was coming to a stop or going down hill. Startups were all supplemented by the ICE.

Overall, the NAH seemed to be more peppier than the TCH. Although, this may have been an illusion due to the added ice and road noise. I can't say for certain if it had more umph than the TCH.

Based on this experience, I think I'm one step closer to becoming a TCH Owner.

Other diffferences that I did notice was;

NAH did not have;
LED tail lights
Projector headlights

NAH did haveh
Rear spoiler with led light bar
body side moulding
colour matched mud guards
dual chrome exhausts
heated cloth seats
Leather stearing wheel
sunvisor extensions
auto up/down front windows
nice better fitting black interior