2020 Spec MX-5 Cars Available To Order

Winding Road Racing has announced that it will build 10 or more new Spec MX-5 race cars for the 2020 season. These cars will be built to the specification announced in late August for the new Spec MX-5 v2 racer by Mazda Motorsports and Spec MX-5 Challenge.

“We plan to build at least 10 cars and are taking reservations for build slots now,” said Todd Therkildsen, Competition Services Manager, Winding Road Racing. “Our production process will begin in October with the first delivery of new Spec MX-5 parts from Mazda Motorsports”, noted Therkildsen. New parts for 2020 include a Roush cylinder head and Mahle pistons, expected to deliver about 15hp more than the 2019 spec. Penske single-adjustable shocks, a hardtop and Toyo tires complete the major upgrades for 2020.

New builds begin with an un-raced, un-crashed, southern street car donor. This is stripped and a TIG-welded cage is added. The car is fully inspected and excessively worn or damaged parts are replaced. Street parts are also replaced with race parts. Safety equipment is added, and options such as data systems, driver cooling and graphics are added.

New builds are priced at $38,320, FOB Austin, TX.

To enquire about reserving a build slot contact Winding Road Racing.


An overview of the cars Winding Road Racing will build includes:

Donor Car

Southern source



Engine Bay

Mazda MZR engine with Roush cylinder head and Mahle pistons

Mazdaspeed cold air intake

Kooks headers

Mazdaspeed exhaust

Custom ECU tune

C&R radiator

Mazdaspeed oil cooler


6-speed transmission with Spec MX-5 ratios

Spec MX-5 bushing kit

ACT Mazdaspeed clutch and pressure plate

Limited slip differential

Differential brace


Penske single adjustable dampers

Mazdaspeed springs

Mazdaspeed sway bars

Mazdaspeed hubs and bearings


Rebuilt Mazda calipers

Mazdaspeed rotors

Mazdaspeed brake duct kit

Pagid Racing pads

Wheels and Tires

Mazda OEM MX-5 wheels (one set)

Toyo Tires Spec MX-5 dry tires


Spec MX-5 SCCA and NASA compliant TIG-welded roll cage

Cage and interior paint

MPI halo seat

G-Force harness

MPI steering wheel

NRG hub

AFFF mechanical pull fire system

WRR Spec MX-5 rear firewall

Racequip window net


WRR Spec MX-5 ballast system


MyLaps transponder


8″ x 17″ wheels

OMP, RaceTech or Sparco seats

Passenger seat

Schroth, Safecraft or Sabelt harness

Sparco, OMP or Sabelt steering wheel

Spec MX-5 bushing kit

Limited slip differential

WRR Spec MX-5 aluminum transmission tunnel

AiM Solo 2 DL data system

AiM MXL2 data system

WRR Spec MX-5 data mounting system

AiM SmartyCam GP HD video system

Motorola radio system


For more information, contact Winding Road Racing.

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