Mercedes Benz has announced that since its SLK class vehicles were launched in 1995, 500,000 have been delivered to customers.
The model, popular with luxury car hire customers, has been well received by drivers, with 310,000 of its first version snapped up.
Since the successor to the original was launched in March 2004, 190,000 units have been sold.
Dr Klaus Maier, executive vice president of Mercedes-Benz Cars, said: "With the launch of the SLK in 1996, Mercedes-Benz successfully established the premium segment for compact roadsters.
"Thanks to innovative technology such as the vario-roof and the neck-level heating system AIRSCARF, the SLK has long been recognized as a cult car of modern times.
"The new-generation SLK models, which we are delivering to customers since April 2008, are sportier than ever. I'm confident that the dynamic looks and performance of the new SLK will again set pulses racing among sports cars enthusiasts around the world."
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