Porsche 911 GT3 MR: Does £56k Manthey kit work on road and track?
Autocar | 29.04.2026 14:00
Manthey’s mastery of Porsche performance enhancement has once again made the headlines, the German tuning and racing outfit’s specially fettled 911 GT3 RS lapping the Nürburgring a full four seconds faster than the ‘standard’ car had ever managed.