In Brief

A simply stunning example of the E46 M3 based Alpina B3 S
Finished in Cosmos Schwartz Metallic over a Hellbeige leather interior
Desirable 'S' spec utilising the 3.4 litre I6 - Number 90 out of 162 made
Private registration 'B3SOK' & factory hard top incuded
Great History file - stamped service book with 10 stamps
Genuine 76,418 miles since new

On the Surface:

This 2004 BMW Alpina B3 S Cabriolet is a truly rare and desirable modern classic. Finished in Cosmos Schwartz Metallic Black with contrasting Hellbeige full leather trim, this beautifully presented example features both a factory-fitted hardtop and a full functional electric soft top. It rides on signature 18" Alpina light alloy wheels with optimised spokes and weights and features distinctive Alpina styling cues including the front splitter, rear lip spoiler, Alpina door sills and B3 S rear badging. Interior comforts include electric heated sport seats with memory, BMW Professional Sat Nav, leather multifunction steering wheel with Switchtronic gear change, auto climate control, cruise control, xenon headlights, heated screen washers, Bluetooth, and rear parking sensors. Having covered only 76,418 miles from new and presented in excellent condition, it remains a true driver's car with presence and pedigree.

Maintenance & History:

Originally supplied by Sytner BMW, an Alpina specialist, this example has had 6 former keepers and comes complete with a valuable registration: B3 SOK (B3-S-OK), which is included in the sale. The documentation with this car is extensive and includes: the current V5C, the full set of BMW Alpina handbooks and the original Alpina-embossed leather book pack holder. Also present are the toolkit, spare wheel caps and a spare key, all of which reinforce it's careful ownership and collectability. This Alpina has benefited from meticulous maintenance throughout its life, supported by a comprehensive service history and over £5,000 in maintenance invoices. The Alpina Service Booklet confirms regular servicing with services carried out at; 7,000, 12,000, 24,000, 38,000, 41,000, 50,000, 57,000, 60,000, 64,000, and 68,000 miles. Accompanying documentation includes previous MOTs, exhaust and brake test reports, emissions tests and visual health checks.

The Model:

Produced between 2002 and 2006, the Alpina B3 S (E46) was built in very limited numbers—just 162 Cabriolets, of which this is number 90, as confirmed by its Alpina dashboard plaque. This later-model B3 S is powered by the hand-built 3.4-litre E5/1 inline-6 engine, shared with the Alpina Roadster S and derived from the S52B32 found in the North American E36 M3. With 309 BHP, the B3 S achieves 0–60 mph in 5.1 seconds and a top speed of 190 mph, making it plenty of fun and not for the faint-hearted. Alpina-specific upgrades include stiffer springs, modified dampers with Eibach springs, upgraded brake pads, and a wider nine-inch rear wheel section.

Sale Insight:

A rare opportunity to acquire an Alpina B3 S Cabriolet in fantastic condition with great documentation. This example stands out as a future classic with strong investment potential.