[Gymkata]

1) Sorry...not sure.

2) I have 10,000 miles and the tires are probably at 75-80%.

3) If I am driving nice, I get about 22 mpg when cruising at 80+ mph on the freeway.

4) The engine is running just over 2000 RPM at 80 MPH in 8th gear.

5) The ML stereo is great in my opinion. I absolutely hate the navigation system because you cannot use most of its functions while the car is in motion. You have to spend over $400 if you want to by a hack for navigation to stop this.

6) I don't know what the standard cruise control is, but there is an option for radar guided cruise control.

7) The stock brake pads do create a lot of brake dust, but there are good ceramic aftermarket pads available.

8) The only car that has beaten me in a roll-on is a brand new Z06 Corvette. My best victory is against a 2004 Audi RS6 twin turbo V8. I have never raced a new M3, C63 AMG, or an RS4, but the C63 AMG is the only car in the ISF's class that can beat it in a straight line.

 

[Gymkata]

You can find more information on the Navigation override at http://www.prestigioussociety.com/le...-override.html

As for 8th gear cruising RPM, it is lower in the ISF than any other car I have ever driven, including my truck, which runs about 2150 RPM @ 80. But unlike my truck, the ISF has a redline of 6800 RPM, which gives it a theoretical redline limited top speed of 259 mph. Of course nobody will ever see redline in 8th gear, but its nice to know you will never be limited by gearing. Did you want a low cruising RPM for better fuel economy? The ISF does get much better gas mileage than any of its competition.

 

[Gymkata]

Interesting, I was hoping the engine would be able to turn less than 2K RPM due to the displacement/V8 but oh well.

Care to elaborate on the Nav defeat gig? I did a defeat on a Pioneer F900BT in my Subaru, but ofcourse that's an aftermarket unit.

Peleg, I was curious myself about IS F 8th gear cruising RPM, so I calculated it out in 500 RPM increments from 1500 RPM to redline...kinda puts things in perspective compared to most "performance cars" out there.

Calculated using a 255/35R19 tire size, a 0.69:1 8th gear, and a 2.94:1 final drive ratio:
1500 rpm – 57 mph
2000 rpm – 76 mph
2500 rpm – 95 mph
3000 rpm – 114 mph
3500 rpm – 133 mph
4000 rpm – 152 mph
4500 rpm – 171 mph
5000 rpm – 190 mph
5500 rpm – 209 mph
6000 rpm – 228 mph
6500 rpm – 248 mph
6800 rpm – 259 mph (redline)

Once again, obviously the ISF is governed at 170 mph, and doesn't have enough power to push past abou 185 mph, or sufficient aero to safely handle if pushed around 200 mph.

One of the reasons I love the ISF is it is pushing 140 mph in top gear at the same RPM as my wife's Honda S2000 at 80 mph!!!