RM Sotheby's has a special treat for BMW M fans, with a collection of spectacular M cars going up for auction at the Villa Erba sale in Lake Como, Italy. Scheduled to take place later in May, the lineup consists of five legendary M cars.

In chronological order, they're a 1990 BMW M3 Sport Evolution (estimate €180,000-€220,000, or around $190,000-$230,000), a 2003 BMW M3 CSL (approx. $127,000-$169,000), a 2010 BMW M3 GTS (approx. $158,000-$211,000), a 2016 BMW M4 GTS (approx. $105,000-$158,000), and a 2022 BMW M4 CSL (approx. $179,000-$243,000). The only M3/M4 generation not represented is the E36.

This group feels like an extension of BMW M's bumper 2022 festivities when the performance division celebrated its 50th anniversary with a slew of new reveals. But some of the best M cars are not new, and the E30 M3 is a perfect example. This particular Sport Evolution example is one of just 600 to be produced, and its handover inspection was completed in July 1990.

The Sport Evolution had a larger 2.5-liter engine, along with front and rear splitters that were adjustable and fog lamps that were replaced by brake cooling ducts. This example is finished in Brillantrot red paint over an Anthracite Motorsport Design interior. Other desirable extras include air-conditioning, electronic damper control, and an electric sunroof. Like all the other cars in this M Power Collection, this M3 is offered with no reserve.

Next is the 2003 M3 CSL, a car many consider the greatest M3 ever, even if its six-speed SMG II automated transmission was far from flawless. Only 1,383 examples of the CSL were made. They weighed around 242 pounds less than the standard M3 - thanks to the greater use of carbon fiber and glass-reinforced plastic - while producing more power from the phenomenal 3.2-liter inline-six naturally aspirated engine.

This one has had only two owners from new and is finished in Silver Grey metallic with an Amaretta synthetic suede and Reflex cloth interior. This is an especially pure version of the CSL, as it doesn't come with the optional radio or Xenon headlights to keep the weight as low as possible.

The generation after the E46, the E92, grew larger and adopted V8 power. It was crowned by the rare M3 GTS in now-iconic Fire Orange. Only 138 of these models were made with a bored-out 4.4-liter V8 engine. A titanium exhaust silencer and polycarbonate rear windows contributed to a lighter weight of around 3,373 lbs, while a suspension setup with adjustable dampers ensured that it was ready for lightning-fast lap times. This example has covered just over 6,000 miles and comes with accessories like a branded champagne bottle and scale models.

The F82 M4 - the first BMW coupe to be badged as an M4 rather than an M3 - wasn't immediately as warmly received as its predecessors due to its spiky power delivery and disappointing engine note. But the M4 GTS was nothing if not a breathtakingly quick sports coupe, becoming the fastest production M car around the Nurburgring at the time.

This M4 GTS has had one owner from the new and is finished in Frozen Dark Grey, with distinctive orange accents on the wheels and front lip. From the back, the large wing instantly identifies it as a GTS model, with the customary quad tailpipes lower down.

Only 700 of the M4 GTS models were produced, and the turbocharged inline-six engine was improved with a water injection system that raised its output to 493 horsepower. Parking sensors and a Professional navigation system were also specified for this model.

That brings us to the newest M car of the batch by far, the M4 CSL. This marks the first time the CSL badge has appeared on a new production model since the M3 CSL, and only 1,000 M4 CSLs will be made. A CFRP hood and trunk lid, reduced sound insulation, and a lightweight titanium exhaust contributes to this car's lighter weight relative to the M4 Competition. With 543 hp, it'll hit 60 mph in just 3.6 seconds.

This one wears Frozen Brooklyn Grey paint over a black interior, has had just a single owner from new, and had its running-in service in September 2022.

Undoubtedly, the M Power Collection is one of the finest groups of hot BMWs you'll find anywhere, and we expect every car here to sell for big money in May.