I've had a couple recent incidents with TACC enabled that have me questioning whether its reliability. The first incident was back in the 6.1 days (believe it was with software .179), where I approached a car slightly ahead of me in the lane to my right that proceeded to put its left turn signal on, then started to move left (still within its lane). Had I not been in TACC, I would have at least taken my foot off the accelerator briefly to give myself a little time and room to judge the intentions of that car as I approached -- standard defensive driving technique that I imagine most experienced drivers would perform. TACC on the other hand ignored the situation as if it weren't happening and simply followed the car directly in front of me at a higher rate of speed. Sure enough, the car in the lane to my right eventually breached the divider line to move into my lane and TACC reacted abruptly with a weak brake (this was pre-Emergency braking) and a beeping collision warning. Having monitored the situation closely with my foot resting above the brake, I easily brought the situation under control with a hard brake action... but not before I was left wondering whether TACC could be trusted in traffic. Fine, I thought... chaulk it up to the immature algorithms in that early TACC implementation. Incident two was just the other day. Now running 6.2 (.124), I was driving along with TACC on with following distance set to "5" when traffic in front of me had quickly slowed down on a straight away. TACC seemed to react very sluggishly to the situation and again put on the audible collision warning as it applied a late brake. I didn't wait to see if it would have stopped in time and hit the brakes myself to make sure I could stop in time. Again, isn't the whole point of TACC to avoid such a situation in stop and go traffic in the first place? Anyone else having similar TACC experiences?