Miata (1989 - 2005)

                FITS ALL

Small Window 

Haartz Black Vinyl Hardtop
Miata with Haartz Black Vinyl Hardto
Small Window
Miata with Haartz Black Vinyl Hardto
Carbon Fiber-Small Window-Defog
Hardtop Interior - Small Window

Big Window

Big Window
Big Window
Big Window
Big Window
 Miata Small Window
Base Price Only $1499.00
Miata Big Window
Base Price Only $1699.00

         Smooth Line offers two different Hardtops for the MX5.

The Small Window model as shown on the left, features a convertible sized rear window. 

The Big Window model shown on the right, features a 50% larger rear window. Other than that, they are identical.



When the weather is fair and the top is down, nothing beats the joy of driving a Miata convertible! However, when the weather is bad or if you are on a long drive on the freeway, you just can't beat a Hardtop. The good news is that now you can have the best of both worlds!

Our Removable Miata Hardtop, which was introduced in 2000, was designed to enhance the overall sports car look with a totally unique "Speedster" roof silhouette. This exciting Smooth Line design features a curved, flush mounted  window for a very sleek and low look. Coming or going, our Hardtop will give your Miata a very aggressive stance that will definitely make heads turn!

Is your convertible top getting ragged, tired looking, ruining the appearance of your car, or worse yet, leaking?  

It is time for the Smooth Line solution, the ULTIMATE REPLACEMENT CONVERTIBLE TOP.

Bring back the pride and joy of ownership of your ride!  The last top you will ever need to buy !

                                                10 YEAR Limited Warranty

Adding a Smooth Line Removable Hardtop is the best styling and practical improvement that can be made to your Miata. Our custom designed Hardtop will give an exciting, clean and smooth look to your Miata while comfortably protecting you from unwanted noise and weather.

The interior is fully upholstered in a thick OEM  felt automotive headliner material that will compliment the interior of your car. This headliner significantly absorbs road noises and also is an excellent insulator against heat or cold. Now you will be able to have normal conversation or really enjoy your favorite music on your stereo. Great on long drives!

This weatherproof Hardtop is designed for all weather conditions. Our rain guards will also help keep your seats dry when the door is opened. This new Hardtop is complete with thick rubber gaskets to ensure a weather tight seal. When your Miata is parked, or in storage, a Smooth Line Hardtop also adds additional security for the car and personal items.

Attachment is very simple designed for the average DIY. Our new "Sure Fit" design and fits all 1989-2005 Miatas.  Simply lower the convertible top in the normal position and attach the Hardtop. The Smooth Line Hardtop attaches to the windshield at the same point as the convertible top and at the sides near the convertible pivot point. No holes to drill. The Hardtop does not require the use of the "Frankenstein" clamps in the rear for a secure fit.

The footprint of our Hardtop is the same as the convertible top and the thick rubber molding seals against the factory plastic molding surrounding the cockpit. The Miata Hardtop is light weight, only weighs approximately 35 lbs., is easy to handle, and can be removed in seconds! Very easy on or off !

All Smooth Line Hardtops are made in the USA by American craftsmen. Quality is an absolute! All production is done in house to insure high standards.

Every Smooth Line Hardtop is custom made to order by our expert trained craftsman, one at a time, and are assigned a unique serial number.

Read about Smooth Line hardtops in MX5 Forever.

Customer Testimonial

"Again, thanks…I’m real pleased and real glad I opted for the vinyl top.Thanks for a great hardtop…looks great."  -D.C., NV 

"I received my new vinyl top today and it is great. The workmanship is very good. I have purchased fiberglass aftermarket parts from other companies but your quality far exceeds theirs. It is a lot quieter inside the car with this new top on. I used to have an Allante with a removable Hardtop, that top moved around when you went over a bump or on a rough road. Your top does not, it makes no noise and doesn't move." - R.M., WA 

Base Price Features


  • High strength, light weight, precision molded, hand laid, oven cured fiberglass composite.  

  • Approximately 35 lbs.- Easy to lift on and off.

  • Premium automotive grade materials - Life time enjoyment.

Exterior Finish (Base Model)

  • Sand-able as molded surface with some slight surface irregularities, mold seams, etc. designed for easy finishing using normal body shop technics to make paint ready, block sanding, filling, priming, and fitting to car.

  • Rear window, exterior moldings, and seals are to be installed after painting.  

  • Hardtops are shipped complete with all parts.


         ( upgradable options see below)


Interior (Base Model)

  • Fully upholstered with a thick charcoal grey color OEM automotive headliner that will compliment the interior of your car. This headliner significantly absorbs road noises and also is an excellent insulator against heat and cold. Now you will be able to have a normal conversation or really enjoy your favorite music. Great on long drives!

  • Improved sound and insulating properties compared to the convertible top.               (up gradable options see below)


Rear Window (Base Model)

  • Clear Plexiglas (1/8" thick- same as glass)

  • This light weight impact resistant acrylic material will not discolor or become foggy and with reasonable care will last for years.  (up gradable options see below)  


Attachment Hardware

  • The front incorporates the exclusive “Sure Fit” design for an easy and secure installation.

  • All metal components are made of high strength corrosion resistant steel and are designed  to provide a  simple, secure, and professional fitting Hardtop.

  • Does not require any modification to the vehicle and is easy to install.

  • Once installed the Hardtop can be easily removed or re-attached in minutes without tools.


Weather Seals

  • Custom extruded rubber moldings are matched to the windshield, rear deck and side windows to ensure a weather tight seal.

  • These OEM quality materials are resistant to sunlight aging, water absorption, and ozone.

                                           Options / Up Grades


Exterior Options

PRIMED EXTERIOR FINISH:  Upgrade $300.00 extra 


Smooth Line Hardtops are available with  smooth, black urethane primer ready for color topcoat. “Ready for topcoat’  means that the body shop will have a minimum of prep before spraying the color coat.

Absolutely no body work will be necessary. Our prime coating is compatible with all top coats.

Color matching is an art! We have found the most accurate color match can be achieved at a quality body shop which uses the latest computer equipment to match the color on your vehicle.


Rear window, exterior moldings, and seals are to be installed after painting. Hardtops are complete with all parts.

Are there any other options for the exterior other than painting?

FLAT BLACK FINISH:  Upgrade $350.00 extra


Almost flat black finish, very low sheen, reminds one of hot rod primer as seen on the latest exotics. Not paint, this tough composite vinyl material, factory bonded to the hardtop fiberglass shell, is extremely durable, super easy to maintain and will probably outlast your car. No need for painting!

Rear window and all moldings are factory installed.

Hardtops are shipped complete with all parts, ready for easy installation and use.

HAARTZ VINYL EXTERIOR FINISH:  Upgrade $400.00 extra


This upgrade is truly distinctive and reminds one of the roof treatments of the 60’s Muscle cars. Tightly stretched, with "Classic" sewn seams front to rear,. Very understated subtle appearance. (Not your grandfather’s Lincoln). There is no need for painting with the vinyl exterior option. Haartz Brand is world renown as the premium automotive vinyl, a very tough material that usually outlasts painted finishes! 

Rear window and all moldings are factory installed. Hardtops are shipped complete with all parts, ready for easy installation and use.

Color choices.


High tech look! Three dimensional, with amazing light reflecting qualities. Low gloss, marine grade, not a film, won’t yellow or craze. This factory installed textured covering is a very tough material, usually lasts as long as a painted finish!

Rear window and all moldings are factory installed. Hardtops are shipped complete with all parts, ready for easy installation and use.  (See Video)



BLACK OR TAN:   Upgrade $125.00 extra

3x thicker than base. Very plush.

Improved sound and insulating properties compared to the base model.


TINTED PLEXIGLAS:  Upgrade $75.00 extra

Dark tint. Great for privacy, bright sunlight or bothersome high beams.

AS-2 SAFTEY GLASS w/ Defog:  ( BIG WINDOW ONLY )   Upgrade $250.00 extra complete with plug and play wiring extensions 

All Smooth Line Hardtops are complete. Nothing else to buy!


     Smooth Line Hardtop Installation

  • Complete nothing else to buy!

  • Requires no modifications to your car.

  • The convertible top does not need to be removed.

  • It stays with the car in the down position. 


          10 YEAR Limited Warranty

Big Window AS-2

All Others