A sleeper car is a bit of a Swiss Army Knife. At a glance, it has an element of unassuming subtlety and practicality. However ...

What is a sleeper? Well, if I’m not wrong, it’s a word used to describe a car that looks stock or almost completely stock on the outside but hides a plethora of changes under the bonnet that ...

When you see a Mercedes-AMG badge, or a BMW tri-color M, or even a Cadillac V symbol, you know that this is a serious performance car. To be the strong, silent type that is a sleeper, you need to ...

By all means, this is a genuine sleeper ... the easiest car to drive hard in. But the E36 chassis is quite nicely balanced, so the engine swap was not a bad idea at all. Now, the BMW 2002 was ...

This led to more speculation on the BMW forums that this car may also be one of the rumored ... still wondering what hit them. And it's that sleeper quality that appeals to him the most.

We love a good sleeper over here at Autoweek, and this 1985 BMW 528E from Bring a Trailer would ... The seller says he built this car to be extremely reliable, and links to a comprehensive build ...

With a production commencement date expected to be around November next year, and any future M3 likely to deliver close to 600 hp, BMW could either choose to launch the M350 with as much as Toyota has ...

Sleeper cars are the best of both worlds ... ultimate sleepers and a brilliant understudy to the raucous V10-powered BMW E60 M5, the 550i from the same era chucks out around 362 hp and 351 ...

The BMW M5 has long been considered a benchmark ... However, those who did cough up the cash were rewarded with one of the best sleeper cars of the era. The Pontiac G8 GXP was built to the same ...

The E36-generation BMW 3 Series Touring is one of the coolest ... the build that started as a cool sleeper car became even more extraordinary.