As of 2016, Miata hardtops are available at GoMiata.com, SmoothLine.com and TreasureCoastMiata.com. GoMiata.com features MX5 Miata hardtops from 1990 to 2015, including fiberglass racing hardtops and original equipment manufacturer hardtops for 2006 to 2014 vehicles. SmoothLine.com offers its custom-designed removable Miata hardtops built to OEM specifications for 1989 to 2005 Miata models. TreasureCoastMiata.com offers Miata hardtops for models from 1989 to the present, including lightweight racing hardtops.
Doing business since 2001, California-based GoMiata's owners and managers are Miata enthusiasts with more than 25 years of experience in the automobile aftermarket industry. Website customers do not pay sales tax except in California.
Pennsylvania-based Smooth Line manufactures hardtops so that customers can install them while the convertible tops remain down, and customers do not need to modify their vehicles in most cases. Smooth Line introduced its Miata hardtop in 2000, and it features a convertible-sized rear window made of tinted, curved Plexiglass. The company prepares the tops for customers to paint them locally, to match their vehicles.
In business since 2010, Treasure Coast Miata focuses on Spec Miata construction, support and performance upgrades, and accommodates customers who want new and used Miata parts. The owners and staff of the Florida-based company have experience in retailing and auto racing, including Miatas. Customer support is available weekdays by phone during normal business hours, and by email.