Read casually — a glance at an X180R on the street, or a quick pass down its Monroney window sticker — and the car reads as an Esprit SE dressed for the track. The reality runs far deeper. Behind the “racing type” and “competition type” phrases that recur on the factory options list sit hundreds of specific parts and build deviations fitted during assembly, from a modified galvanized chassis to a Delco Moraine anti-lock brake system to a Safety Devices roll cage bonded into the structure.
The equipment below is drawn from the technical-specification pages of the X180R owner’s-handbook supplement, one of which was provided with each of the twenty homologation cars. The foreword in every supplement was individually signed by Lotus Chief Engineer Oliver Winterbottom. A handful of entries have been sharpened using Winterbottom’s internal draft specification sheet, dated October 9, 1990 — though that draft still listed two features, racing harnesses and an oil-pan baffle, that never reached the production homologation car. The list is not exhaustive, but it captures what sets the X180R apart from every other Esprit.
X180R Homologation Car Equipment
01 Suspension
- Modified galvanized steel chassis to support fully adjustable competition suspension and high-rate suspension springs
Front Suspension
- Revised lower link geometry to give zero dive or squat
- Strengthened top links with shortened inboard pivots to give increased caster, camber being adjustable via rotating lock washers.
- Spring tower strengthened with spring frequency raised 40%
- Stabiliser (anti roll) bar tuned for neutral handling, running in solid bushes transmitting roll control via spherical rubber bushes in the modified track control arm.
- Monroe shock absorbers with competition valving (revised settings), new rubber mounts and steel retainers.
- Steering rack, standard component on higher mounts connects to revised steering arms to control toe characteristics
- Ride height reduced
Rear Suspension
- Top links modified to permit camber adjustment
- Radius arm mounting bush stiffened 33%
- Spring frequency increased 12.5%
- Dampers with revised settings and new rubber and steel retainers
- Hub carriers remachined to accept revised brake specification
- Rear ride height lowered
Chassis Frame
- Additional mount on backbone for the roll cage
- Rear spring tower strengthened with roll cage mount
- Steering rack mounts raised. (aka revised steering geometry)
- Front spring tower strengthened
- Front suspension top link pivot tube length reduced
02 Brakes
Braking system totally revised and actuated through a Delco Moraine anti-lock system.
Front Brakes
- 13 inch diameter curved vane ventilated front discs mounted on aluminum bells
- AP Racing 4-piston aluminum calipers with 36/38.1 mm diameter pistons
- Ferodo 3432 (asbestos free) high performance brake pads
- brake cooling ducts
Rear Brakes
- 11 inch diameter curved vane ventilated rear outboard discs mounted on aluminum bells.
- AP Racing 4-piston aluminum calipers with 31.75 mm diameter pistons.
- Ferodo 3432 (asbestos free) high performance brake pads.
- Brembo parking brake caliper, independently mounted is cable actuated by a modified handbrake lever. System is self adjusting.
- Parking brake pads asbestos free.
Vehicle System
- SRF high performance brake fluid.
- Revised pedal with non slip finish.
03 Wheels & Tires
Front
- 16" x 8.5 Revolution 3-piece alloy racing wheels
- Goodyear Eagle 225/45ZR16 tires with unique internal construction (per X180R supplement)
Rear
- 16" x 9.5 Revolution 3-piece alloy wheel
- Goodyear Eagle 255/50ZR16 tires with standard construction
Spare
- No spare tire fitted
- Two “Fix It Fast” tire inflator cans (instead of spare tire) mounted with special brackets
04 Engine & Transmission
Engine
- Blueprinted cylinder head
- Matched ports to manifolds
- Induction system silencer deleted
- ACU condenser utilized as additional chargecooler (heater only vehicles)
- Non-intercooled specification exhaust silencer with left side outlet
Transmission
- Renault 5-speed with strengthened competition-type casing
- Limited-slip differential
- Gear clusters have increased hardening specification
- Special double-pinned gear selector forks
- Provision for oil pressure feed and cooler (optional extra)
- Speedometer drive deleted, system electronic
- Increased heatshielding on selector cable
05 Body
Standard SE body shell available with composite opening roof panel only.
- Monaco White paint
- Front air dam redesigned with rubber lower lip balancing lift front to rear
- Air deflectors on leading edge of front wheel arches
- Front fog lamps deleted to permit additional brake cooling
- Rear competition-type wing mounted higher and more rearward
- Turbo type rear lower
- Exterior mirrors in satin black finish (aka “competition type”)
- Reduced ride height
- World Challenge decals
06 Interior
- Steel tubular Safety Devices roll cage with braced bulkhead structure and door sill bars
- Black, reflection free “Doeskin” trim fabric
- Reclining seats with competition-type side supports
- Perforated hide on wearing surfaces (graphite leather)
- Center tunnel top with console and map pocket deleted
- Passenger door grab handle
- Simplified door trim with perforated leather inserts, ashtrays deleted
- Anthracite gray lightweight carpet with all sound deadening deleted
- Black low-glare instrument panel with 100mm electronic speedometer and tachometer
- 225 mph speedometer
- Tachometer rotated for improved readability
- Digital clock deleted
- Air conditioning deleted; cabin and windshield heater retained (per Winterbottom draft, October 9, 1990)
- Fascia mounted audio speakers deleted
- Competition-developed optimized foot pedal locations, including a “Trackgrip” brake pedal placement (per Winterbottom draft)
- Revised non-slip pedals with aluminum heel rest and clutch foot rest
07 Accessories
- X180R owner’s manual supplement
- parts vendor identification kit
- standard Esprit plastic box tool kit and jack