I had a 3.5 hard top and now have a 4.0 soft top. The soft top is so much quieter than the hard top was. At speeds above 60 MPH I couldn’t hear the radio or phone with the hard top down and with it up it wasn’t much better. The 4.0 soft top you can listen to the radio no problem at 70. Launched at Geneva International Motor Show in 2005, the third generation MX-5 (NC) featured a 2.0-liter engine for the first time. A year later, a retractable hardtop model was added to the lineup. It was designed to make the pleasures of open-top driving accessible to a wider audience and was a hit with fans around the world. There’s the six-speed automatic gearbox available on later models too, which can be mated to the 2.0-litre engine to do 0-62mph in 8.9 seconds. Later soft-tops are 1.8-litre only, with the folding hard top getting the 2.0-litre and automatic options. The availability of a folding hardtop version, badged RC, makes it an even more sensible buy. The 2.0 soft top, or the 2.0 hardtop. Softtop has 40k Hardtop has 60k Pretty much same price. My only real question (although any advice is appreciated) is how much slower is the hard top with the added weight. Autotrader state the 0-60s as 7.9 and 8.2 respectively. But I want to know real world. Can anyone give me a definte answer, what weighs more the softtop or removable hardtop? i have two options. Keep the soft top, or remove the soft top from the car, and just run the hard top. Does anyone know? Blink? Rodder? do you have a soft top you can weight for me? Or have you had a car on the scales before and after? Cheers Description. Mazda 2006-15 Miata convertible top. Robbins core number 2968. Top with Heated Glass Window. Original Style One Piece Design with Listing Panel, No Deck Seams and No Zipper. Raingaurds sewn along sides of top. Rain Rail not available (Must reuse original rain rail). Fits cars manufactured through March 2015. For model year (s) 2006 Mostly though, the folding hardtop makes the driving experience that much more grownup feeling and that theme extends to the NC MX5 overall – it’s more comfortable than its predecessors, more refined, you’ll get 37mpg on a run and it even got a four-star Euro NCAP safety rating thanks to its plethora of airbags and impact protection bars. Remove all three pieces of the rear set plates and place them in order on the floor. Fold the hood back to remove the header rail at the front of the top. Remove the header rail screws (7 on the Mk1 MX-5, Mk2 have either 5 or 4). Pull the header rail from the hood and store it safely out of the way. Also remove the 2 black screws (each side OEjis.