Simon.Rogers Posted October 9, 2023 Share Posted October 9, 2023 2008Caterham Sigma Supersport iRS (Independent Rear Suspension)A super rare opportunity to purchase our demonstration iRS 7.The car is fitted with our unique independent rear suspension system. The de Dion tube is a thing of the past. All the benefits of the CSR chassis compliance yet retaining the very nimble narrow chassis of the S3.This car began life as an academy car. When I purchased this as my basis for the development of the iRS we always knew it was going to be a full refurbishment. A complete skin off refurbishment in 2021 all completed at Arch Motors. We then proceeded to fit the iRS kit along with way too many extras. This car had to be special yet very drivable and not extreme.Nearly all of these parts were new in 2022Sigma 1.6 Supersport spec. MBE 9A4 - new 2022 - unlocked and mapped by Steve Greenald.CORE 1 way dampers - Digressive front pistons.Hyperco SpringsTransport LSD - 3.92 FordStandard brakes - Mintex 1144 pads front and rearMix of copper and braided break linesBrand new Caterham 8 spoke wheels 6” and 8”ZZS tyresCarbon Carbon CarbonDashboardFront wingsRear wingsTillet B6 seatsCaterham 4 point harnessLowered floors both sidesFIA Roll barWrapped in 3M Crayon Grey with orange stripesNew fuel pump and sender5 speedRange of new dials and gaugesGo Race quick releaseNew CATNew Caterham polished silencerNo heaterSoft Bits half hoodDoorsNew boot coverJust serviced and comes with MOTThe iRS installation retains all standard brakes, dampers and drive shafts and is therefore reversible if ever wanted. Once you drive this car and experience the benefits of the system you won’t want to ever return and remain one of the growing fleet of cars.Please add up the cost of all the extras and add them to the base price of a comparable Supersport and you will see how much of a bargain this car represents.Private Salehttps://www.pistonheads.com/buy/listing/15718376 Link to comment Share on other sites More sharing options...
Jimbo7 Posted October 11, 2023 Share Posted October 11, 2023 Saw this Seven on the F&C Run in May, great spec car. Link to comment Share on other sites More sharing options...
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