An Undervalued Supercar That's A Future Classic In The Making

The McLaren-Mercedes partnership

As mentioned before, the SLR was a joint venture between Mercedes-Benz and McLaren. However, the two automakers didn’t collaborate out of the blue. Mercedes once owned 40 percent of the McLaren Group. By the late 90s, Mercedes-Benz and McLaren were on top of the world, having dominated F1 with back-to-back championship wins, at the hand of Mika Häkkinen. Riding this wave of success, they teamed up to bring Mercedes’s jaw-dropping Vision SLR concept car to life, which eventually became the iconic Mercedes-Benz SLR McLaren.

Mercedes crafted the SLR’s eye-catching exterior body, while McLaren’s expertise took over from there. The British automaker handled the entire process, from the initial design and engineering to the meticulous hand assembly and rigorous testing of each individual car on the production line, at its Woking facility in England. All of this was possible because of Gordon Murray, the man behind the record-breaking McLaren F1 supercar. It’s sadly not the rear mid-engined monster like the F1, but more like a front-mid-engined grand tourer.

While it wears the Mercedes badge, the SLR is largely a product of British engineering and manufacturing expertise. However, the heart of the matter is that the M155 supercharged 5.4-liter V8 is an AMG-developed mill and is closely related to the mass-produced M113 V8 found in the CLK, the SL 55 AMG, and more. Unlike today, where you can get a full-fat AMG-made engine even with a four-pot powered C43, not all performance-oriented Mercs had an AMG-built engine. The SLR McLaren became the first Mercedes to possess a handcrafted engine straight out of Affalterbach.

The Mercedes-Benz SLR McLaren features F1 tech

In September 2003, the world got its first glimpse of the production SLR at the Frankfurt Motor Show. It stayed true to the original 1955 model and the vision SLR concept but pushed boundaries with its carbon-fiber monocoque construction, a technology McLaren had perfected in F1. The chassis incorporated a carbon fiber crash structure, a world first. Additionally, the outer body is mainly constructed from carbon-fiber reinforced plastic, and you can get a nice visual of the material when you open the scissor doors and take a look at the inner panels. Other unique touches include the air brake and the flip-up fighter-jet-style engine starter button.

Mercedes-AMG supplied the mighty 5.4-liter supercharged V8 engine paired with a five-speed automatic transmission, all nestled in a mid-front position under the SLR’s sleek, low-slung nose, also reminiscent of a Formula 1 car. That’s because Gordon Murray wanted the SLR to feature a slightly rear-biased weight distribution, contributing to better traction and steering feedback. The V8 is rated at 617 horsepower and 575 pound-feet of torque. That’s 60 ponies and 44 pound-feet of twist, more than the original Vision SLR concept. The production-spec SLR could hit a top speed of 207 mph and sprint to 60 mph in a blistering 3.3 seconds.

Why the SLR is undervalued

It’s no secret that the Mercedes-Benz SLR McLaren is less popular than the Porsche Carrera GT and the Ferrari Enzo. Personally, I think the SLR’s front-mid engine layout and overall body structure made it a little less interesting than the Carrera GT and the Ferrari Enzo. Its grand tourer-like aesthetics weren’t as sought-after as its prime rivals.

Ferrari built rear-mid-engined supercars long before the Enzo, but Porsche did something incredible with the Carrera GT. It incorporated a motorsport-derived V10 engine that still remains one of the best-sounding engines. Coming from a legacy automaker, the Carrera GT is more exciting and probably among the final "analog" supercars.

Comparatively, the SLR McLaren is powered by a V8 engine that’s neither motorsport-derived nor as symphonic as the Carrera GT’s V10 or the Enzo’s V12. Its cross-plane crank V8 is closely related to the mass-produced unit found inside AMG models of that era, and its guttural ruble, coupled with the supercharger whine, makes it sound like an American muscle car rather than an exotic one.

Among the Holy Trinity of the 2000s, the SLR has the most torque. The Porsche Carrera GT’s 5.7-liter naturally aspirated V10 is rated at 603 horsepower and 435 pound-feet of torque, while the Enzo’s 6.0-liter V12 is rated at 651 horsepower and 485 pound-feet of torque. Thanks to the forced induction, the SLR could feel more responsive down the rev band.

Another interesting fact about the SLR McLaren is related to its gearbox. So, unlike the Enzo’s then-modern F1-style single-clutch automated manual gearboxes and the Carrera GT’s manual-only affair, the SLR’s torque converter automatic sounds a little less enthusiastic. These characteristics give the impression that the SLR McLaren is not like the F1 but more like an amalgamation of the F1 with the SL, making it a fast grand tourer, not an adrenaline-rushing supercar.

Here’s what makes the McLaren-Mercedes SLR a future modern classic

Classic collector cars have transformed into more than just passion projects. Limited production runs and cultural significance, coupled with a growing enthusiast community, have led to their recognition as legitimate investments. Today, some AMG Black Series models, such as the CLK 63 AMG Black Series and SLS AMG Black Series, are sought-after due to their limited production and track-ready capabilities.

As for the McLaren SLR, many examples have been sold for around $370,000, with some of them touching the $800,000 mark. Originally priced at around $450,000, for an exotic halo car from the mid-2000s, the SLR McLaren is still not yet on par with the Porsche Carrera GT (currently valued at around $1,500,000 to $2,000,000+) or the Ferrari Enzo (commanding prices of around $3,000,000 to $4,000,000+).

With the exception of the SLR Stirling Moss of which only 75 examples exist and fetch around $3,000,000 the standard SLR continues to remain relatively affordable. However, that doesn’t mean the SLR McLaren could not shoot up in value. With the growing trend of electrification, pure gas-powered cars, especially the exotics, are witnessing a surge in popularity. The SLR McLaren, with its F1-inspired chassis, stunning design, and powerful performance, is expected to be a future classic. If there’s one man who understands SLR McLaren’s value proposition more than anyone else, it is California-based real estate tycoon, Manny Khoshbin. While the video below is over five years old and Manny had five SLRs at the time, he now owns eight examples.

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