Visually, the Overdose package is unmistakable. Bespoke carbon-fibre fenders widen the Series II Cullinan by 12 cm, dramatically broadening its stance and accentuating the marque’s already-signature grille and proportions.
Novitec partnered with Vossen to fit the Cullinan with forged 24-inch wheels. Combined with 20mm front and 25mm rear spacers and a suspension drop of up to 35mm, the result is a lower, more planted profile but one that requires careful handling in tight urban environments and narrow lanes.
Engine: 6.75L twin-turbo V12 (mechanically unchanged)
Power: 707 hp
Torque: 781 lb-ft
0–62 mph: 4.6 seconds
Under the skin, Novitec leaves the Cullinan’s V12 hardware untouched. Instead, it extracts extra output through electronic recalibration and a bespoke, freer-flowing exhaust. The conversion lifts peak power to 707 hp and delivers a quoted 781 lb-ft of torque, shaving the 0–62 mph time to roughly 4.6 seconds while adding a sportier V12 soundtrack.
Spofec also offers extended customisation for the cabin. While Rolls-Royce already provides near-limitless factory options, Novitec says it can refine upholstery, trim materials, and bespoke detailing to meet specific owner requests — at a cost that reflects the ultra-luxury segment.
Price remains a clear barrier: a standard Series II Cullinan starts well north of £300,000, and UK-widebody examples from specialist outfits such as Urban Automotive list around £449,995. Expect Spofec’s fully tweaked Overdose cars to sit in that high-end bracket or above.
For buyers who want their Cullinan to be louder, wider, and quicker without swapping the engine internals, Spofec’s Overdose package provides a tempting — if expensive — option. It’s a reminder that even the most ostentatious factory Rolls-Royce can still be pushed further by the aftermarket.