Try the Sonax product for Alcantara:
http://www.amazon.com/Sonax-206141-Upholstery-Alcantara-Cleaner/dp/B00BBWJ16U/
The seats are suede, this product MIGHT work for that as well, not 100% though. Based on this thread, suede might be a tad easier to clean with household products if you wanted:
http://shoforum.com/index.php?threads/seat-cleaner-and-protection.125529/
Leather Master used to have a product also specifically for Alcantara, but I am having the hardest time locating it now.
http://shopdetailersgarage.com/index.php?id_product=208&controller=product
303 Fabric Guard and CarPro Cquartz Fabric & Leather Coat might be good protectants after the cleaning is done.
http://www.amazon.com/Sonax-206141-Upholstery-Alcantara-Cleaner/dp/B00BBWJ16U/
The seats are suede, this product MIGHT work for that as well, not 100% though. Based on this thread, suede might be a tad easier to clean with household products if you wanted:
http://shoforum.com/index.php?threads/seat-cleaner-and-protection.125529/
Leather Master used to have a product also specifically for Alcantara, but I am having the hardest time locating it now.
http://shopdetailersgarage.com/index.php?id_product=208&controller=product
303 Fabric Guard and CarPro Cquartz Fabric & Leather Coat might be good protectants after the cleaning is done.