1,000 free Lufthansa miles for registering at Sixt ‘Meilenspur’

A new promotion from Sixt and Miles&More to earn 1,000 award miles when registering for Sixt 'Meilenspur'.

I just registered and it worked perfectly for me. The miles have not been credited yet though.

Airline Credit Cards
Airline Credit Cards

The webpage is in German though so use Google Translate.

HT vielfliegertreff.de