Hundreds of sketches were submitted and would form the basis for twelve quarter-scale models digitized for computer manipulation.

Parallel to the virtual process, the twelve scale models were scrutinized as well, with four standouts chosen to be created in full-size mockups.

[7] In July 2001, after over five years of development, the new SL was unveiled and introduced at the 2001 Frankfurt Motor Show that September.

Exterior styling changes include a new bumper with three large cooling air intakes and a more pronounced V-shape as well as fog lamps with chrome surrounds, new light-alloy wheels, new rear light.

Interior changes include softer leather upholstery, new interior colours, high-quality metal door sills with Mercedes-Benz lettering and embossed aluminium trim elements, removable luggage cover, optional remote boot-lid release.

[15] According to another article, Mercedes created 550 of these cars, all pewter in colour with burgundy leather, black ash wood trim, 18-inch double five-spoked wheels, and matching 50th Anniversary Edition luggage.

The SL received a new, more aggressive front end reflecting Mercedes's new design philosophy, with a pair of long powerdomes on the bonnet and a single-bar grille replacing the old three-bar effort.

Mercedes-Benz is extending the SL-Class line-up by introducing an attractive entry-level model in the shape of the SL 280 developing 170 kW (231 PS; 228 hp).

The six cylinder powerplant delivers its peak torque of 300 N⋅m (221 lbf⋅ft) from 2500 rpm and accelerates the roadster from 0 to 100 km/h (62 mph) in 7.8 seconds, whilst fuel consumption (NEDC) is just 9.4 L/100 km (30 mpg‑imp; 25 mpg‑US).

Instead of a torque converter, it uses a compact wet startup clutch to start the car off, and also supports computer-controlled double declutching.

The MCT (Multi-Clutch Technology) acronym refers to a planetary (automatic) transmission's multiple clutches and bands for each gear.

The new Race start Function is a launch control system which enables the SL 63 AMG driver to call on maximum acceleration, while ensuring optimum traction of the driven wheels.

It included Designo Magno Kashmir white finish, AMG Exterior Carbon package with matte surface, interior Carbon matte trim with Tobago Brown nappa leather upholstery, AMG Performance package, 'Grosse Ingenieur' (Big Engineer) watch from Swiss watchmaker IWC Schaffhausen.

These engine improvements result in a 58 PS (43 kW; 57 hp) higher power output than the standard AMG model.

[29] The AMG Speedshift Plus five-speed automatic transmission include "C", "S", "M1", and "M2" which has gearshift times 25 percent quicker than the "M1" mode.

[30][31][32] It is a version of SL roadster in iconic matte black paint with 19-inch AMG five-spoke light-alloy wheels in a two-tone high-gloss finish, silver-painted front brake calipers with the Mercedes-Benz logo, darkened headlamps/tail lights, black nappa leather upholstery with shining chrome trim, seats with arrow-shaped seams and silver-coloured contrasting features, sports steering wheel and shift lever and roof lining in black, trim strip of the draught-stop has a high-gloss finish, silver-coloured vents at AIRSCARF system.

[35] SL 350 Grand Edition included 19-inch AMG 5-spoke alloy wheel in titanium, front brake callipers with the Mercedes-Benz logo, drill bench rated brake discs, twin chrome square exhaust tips, chrome shoulder line trim, high gloss door handle, Grand Edition side emblem, nappa leather seat, SLR design shift knob, prism pattern aluminium trim, silver colour AIRSCARF vent, chrome door sill plate, chrome draught strap, floor mat with Grand Edition logo, ashtray with Grand Edition logo.

Other options include AMG sport package, designo piano lacquer black wood trim.

SL 500 Grand Edition included 19-inch AMG 5-spoke alloy wheel in titanium, front brake callipers with the Mercedes-Benz logo, drill bench rated brake discs, twin chrome square exhaust tips, chrome shoulder line trim, high gloss door handle, Grand Edition side emblem, SLR design shift knob, designo piano lacquer black wood trim, silver colour AIRSCARF vent, chrome door sill plate, chrome draught strap, floor mat with Grand Edition logo, ashtray with Grand Edition logo.