Van1

A 1960's VW Bus with a 993tt motor would be a sleeper.

mongrelcat

Here's two:

Mike's:
http://www.turbokraft.com/gallery/v/Mike/
http://az.pca.org/classifieds/250/47...bo-the-sleeper

Princeton's: http://www.excellence-mag.com/issues...ter-ego?page=1

jstyer

Nailed it Quad...

Also, a chip, exhaust, and some suspension mods does not a sleeper make. In any car.

ilko

A 911 is a sports car. It is not a sleeper by definition.

skl2

sleeper can mean different things...My Cayman looks pretty much stock from the outside (different OEM wheels and a little lower) but save for the completely different exhaust, no one would expect it to beat 997 S's up the front strait at Road America....but it does and a few of those 997S owners referred to it as a sleeper.

Mister C

completely agree.

Many people here know the difference between the Porsche animals but to the general public all are fast and none are sleepers.

A chipped, debadged Audi avant (wagon) is a sleeper IMHO. So is the Dodge Dart described above.

JPP

This is the real deal. Of course, even at idle at 10 feet, she'd be a dead giveaway:
http://cgi.ebay.com/ebaymotors/1947-...exp=true#v4-41

hal m

I have a chip tuned SL600. (600hp/700TQ) It looks like an old man's car (I'm an old man!). It says V12 on the sides (If you notice), but it says nothing about also being twin turbo-charged. The AMG SL65 says V12 biturbo on the sides and trunk lid. Pretty close to sleeper status

Quadcammer

this is one of my favorites, although its probably not that quick:

http://www.examiner.com/article/penn...with-srt4-swap

il pirata

My favorite sleeper story is from the late 1990's when Paul Newman had a Ford 5.0 V8 stuffed into a Volvo 960. He was quoted as saying "I tell ya, from 20 to a hundred you can chew anybody's ***."

Here is a more in-depth discussion of the story.

http://www.swedespeed.com/news/publi...rinter_33.html

Triple G

Here is the allroad I built 2 years ago. Might classify as a "sleeper". I don't really classify any 911 a sleeper..

Fairly stock outside. Built 2.8TT with 500AWHP

Falcondrivr

I bought my wife a Volvo V70T5R that was pretty sleepy. She didn't even know that it was actually pretty bad ***.

chaoscreature

I agree that it would take a lot of engine and stealth to make a 911 a sleeper. Like blow your socks off fast but without the big tail, wide body and graphics.

Best sleeper I ever saw was a Jeep ****** at Pomona. It had 35" mud tires, a winch and roll cage so it looked like a typical off road mudder. It had a built 454 under the hood and after an impressive (although useless) 4 wheel burnout it ran low 11's in the 1/4. No one saw that coming.

Sleepers need to appear benign but then SURPRISE!

RocketJohn

993's beauty by definition cannot be a sleeper. It's impossible to slip under a radar with one of the best looking cars of all times.

The only P-Car that I could see being a sleeper would be a brown or beatup looking 924. Anything else is just going to garner too much attention.

hal m

914 Porchev conversion?