Unless you live under a rock you realize the cat is now out
of the bag.
The Lexus IS-F has been tested by three different sources
and the results are in. As you may remember I ran the data and posted a scenario
a few weeks back and gave my take on the then hypothetical performance figure.
I wonder then did The IS-F have an Ace in The Hole using an eight speed
transmission? At that time I estimated my theoretical figures were accurate to around
plus or minus 3%. A lot of you saw those figures and had to be picked up off
the floor laughing and then you picked it apart. I am fine with that that is
what we all do.
But how did I actually fare?
First, of all you have to realize that no two vehicles are
alike nor are the conditions ever identical between separate test. But what we
do have here, is three separate tests all with relative temperatures all on the
same day. But since each vehicle and driver skill (the biggest error point) is
a little different, it is appropriate to average those figures and then compare
to my results.
First up were our good friends over at Edmunds Inside Line. Their
obsidian example clocked a 0-60 of 4.8 seconds and a ¼ mile of 13.2 seconds.
Not too bad I might say.
The second review was the renowned Car and Driver Magazine
staff. Their silver IS-F tripped the lights with a 0-60 of only 4.2 seconds
and a 0-100 time 9.8 seconds. The ¼ mile ran though at a blistering 12.7
seconds as well. See what I mean about the driver being crucial?
The final review published was the team over at Motor
Trend. They had an interesting red example that fell in the middle with a 0-60
time of 4.7 seconds, a 0-100 of 10.5, and finished with a 13.0 second ¼ mile.
So where did my estimates fall in the mix? My initial 0-60
time came in at 4.4 seconds a bit optimistic maybe, but well within the actual performance
figure range of 4.2 to 4.8 seconds. My 0-100 time was 10.5 seconds exactly as
tested by Motor Trend. My estimated ¼ mile time was 13.0 second again matched
to the second by Motor Trend and smack in the middle of the others.
But what about the error margin the skeptics ask? Lets lay
it out and see and then you can tell us.
| |
Lexus IS-F Test Results |
| |
|
|
|
|
| |
Seconds |
Seconds |
Seconds |
MPH |
| |
0-60 |
0-100 |
1/4 mile |
Trap Speed |
| Motor Trend |
4.70 |
10.50 |
13.00 |
111.70 |
| Car And Driver Magazine |
4.20 |
9.80 |
12.70 |
114.00 |
| Edmunds Inside Line |
4.80 |
N/A |
13.20 |
109.00 |
| Overall Averages |
4.57 |
10.15 |
12.97 |
111.57 |
| |
|
|
|
|
| AutoSpies Estimates |
4.40 |
10.50 |
13.00 |
110.10 |
| Delta |
0.17 |
-0.35 |
-0.03 |
1.47 |
| Error Margin |
3.65% |
-3.45% |
-0.26% |
1.31% |
Not bad shooting if you ask me for taking figures and
running them through a series of formulas? While we were slightly outside of
my estimates of 3% with two of the averages, both of those figures were either
matched or beaten by at least one of the actual test cars. I was particularly surprised
that my quarter mile estimate was within 1% and the trap speed was off by less
than 1.5% from the average.
So you tell us were we right, or wrong?
Did Lexus Have an Ace in the Hole with the IS-F and the
eight speed transmission?
All I can say is you might want to believe me next time I
post an estimate.
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