The fully redesigned (and lighter) 2016 Mazda MX-5 Miata has been a hit with automotive scribes and enthusiasts alike over the past several months. Today, Mazda built on their three tenets (lightweight, fun-to-drive, and roadster) of the drop-top by unveiling two new concept vehicles at the SEMA Show in Las Vegas.

The MX-5 Spyder and MX-5 Speedster concepts are Mazda’s view of what the iconic roadster would be if their philosophy of “lightweight performance were taken to the extreme.”

Here’s what we thought of the 2015 Mazda MX-5 Miata PRHT.

According to the release from Mazda, “MX-5 Spyder is a sophisticated interpretation of the classic vintage roadster, which is designed to accentuate the open-air experience. Its bikini top was developed by ASC – American Sunroof Corporation with the fabric supplied by Haartz.

MX-5 Spyder Concept

Other highlights include its specially formulated Mercury Silver paint color, carbon fiber aero kit, grille intake and body toneau cover and lightweight Yokohama ADVAN Racing RS II 17-inch wheels. Its interior is adorned in Spinneybeck “PRIMA” natural leather, lending a sense of vintage motoring from behind the wheel.

MX-5 Speedster pares the roadster back to the essentials for an unadulterated, wind-in-the-hair driving experience, evocative of the open-top sports cars of the 1950s—even going to far as to eschew a windshield for a deflector. In the same vein, the utter dedication toward creating such a focused machine led the design staff to build the Speedster with custom 16-inch RAYS Extreme Gram Lights wheels, benefitting MX-5 with less unsprung weight. MX-5 Speedster finished in a new concept color called Blue Ether.

Mx-5 Speedster Concept

Other details on MX-5 Speedster include an adjustable coilover suspension, which lowers it by 30mm compared with the production-car specifications, a Racing Beat center-mount exhaust, an interior retrimmed in Alcantara, carbon fiber Mu-Len Delta seats created exclusively for MX-5 and carbon fiber doors. In all, the lighter-weight materials have helped contribute to a weight loss of more than 250 lbs., with MX-5 Speedster weighing 2,080 lbs.”