An initiative by Porsche GB is hoped to put its dealer network in touch with hundreds of existing and prospective customers.
The sports car brand is holding free health checks for any 911 at its Official Porsche Centres on October 16 at its Porsche 911 Service Clinic.
The checks are by appointment only.
A previous event for Boxster owners attracted 440 cars.
Porsche GB said: "Owners can experience first hand the passion and expertise of the technicians devoted to ensuring the cars continue to deliver maximum performance and driving pleasure.
"In celebration of the 911 range and for customers to learn more about their model’s heritage and technical highlights, each Porsche Centre will showcase a classic 911 display, provide four wheel alignment demonstrations and invite visitors to enter a prize draw."