Restyled Features
Peter Stevens, who designed the original Impreza WRC in 1997, as well as subsequent Prodrive limited edition Imprezas, restyled a number of features for the P25. Working alongside the Prodrive Engineering Team, overseen by Technical Director, David Lapworth, the modern version took its heart and spirit from the original World Rally Car, the WRC97.
The technical focus was on making P25 lighter, more powerful and even better handling than its competition predecessor. As a result, the Prodrive P25 is, quite simply, the best road-going Subaru Impreza ever built.
Reduced Weight
Lightweight bodywork, achieved by the extensive use of carbon composite, means the car weighs less than 1200kg.
Manufacturing the boot, bonnet, roof, sills, door mirror housings, front and rear quarters, bumpers and WRC style rear wing from carbon composite removed weight from the chassis.
Inside, optional lightweight race seats, carbon door cards and a lightweight lithium-ion battery helped achieve the best possible power to weight ratio.
More Power
A brand new 2.5 litre Prodrive-built turbocharged four- Cylinder boxer engine was based on the EJ25 and produced 450bhp.
Improvement was thanks to bespoke internal components, including forged pistons, steel con rods, ported cylinder heads and new value seats for improved airflow and combustion, and a valve train with variable cam timing. There was a Garrett performance road turbo with a high-performance intercooler and airbox as well as an Akrapovič titanium tipped racing exhaust system.
The engine was mated to a six-speed sequential gearbox with helical cut gears and semi-automatic shift via a single paddle on the steering column, giving precise gear changes in 80 milliseconds.
A WRC-style launch control system, which combines the flyby-wire throttle and clutch in the floor-mounted pedal box, to automatically takes the car through first, second and into third gear. Achieving this optimal acceleration from a standstill without any driver intervention means the P25 will reach 60 mph from rest in under 3 seconds.
The ECU and bespoke controller provided Road, Sport, and Sport+ maps which give you control over progressively increasing boost from the turbo, delivering a sharper throttle for quicker engine response, and finally deploys an Anti Lag System for immediate power delivery out of every corner. The system also electronically controled the differential for more precise handling.
Optimised Vehicle Dynamics
The front and rear carbon wheel arches took their cue from the original WRC97, allowing for a wider track.
Increased power was delivered to all four wheels with a drivetrain via an adjustable active centre differential and limited slip differentials front and rear. Strut suspension was retained, but machined aluminium uprights tuned for camber and geometry optimised the wider track and lowered ride height. Bilstein dampers were adjustable for compression and rebound, while the springs and anti-roll bars optimised the tarmac handling.
Stopping power was provided by AP Racing brakes with 380 mm vented discs and six-piston callipers at the front and 350 mm vented discs and four-piston callipers at the rear with floating bells and multiple pad options. Prodrive GC-012L 8.5 x 19 rims were fitted with Bridgestone Potenza Sport 235/35 R 19 tyres which were selected during rigorous testing for their peak performance and durability.
Technical Specification
-
2.5 litre 4 cylinder horizontally opposed ‘boxer’
Variable cam timing
Garrett performance road turbo with anti lag
Akrapovič racing exhaust with active silencer bypass
Power >450 bhp
Torque >600 Nm
-
4 wheel drive
6 speed X-Shift sequential gearbox with helical gears
Semi automatic single paddle shift gear change
AP Racing twin plate clutch
Active and adjustable electronic centre differential
Plated limited slip differentials front and rear
-
Subaru Impreza WRX steel monocoque
Carbon fibre body panels:
Bonnet, boot, front and rear quarters, roof, front & rear bumperImpreza WRC97 style rear wing
-
MacPherson strut front and rear
Bilstein two way adjustable dampers
Upright adjustable for toe and camber
Changeable springs and anti roll bars
-
Wheels:
Front: Prodrive GC-012L 8.5 x 19
Rear: Prodrive GC-012L 8.5 x 19
Tyres:
Front: Bridgestone Potenza 235/35 R 19
Rear: Bridgestone Potenza 235/35 R 19
Brakes:
Front: AP Racing 380mm vented discs with 6 piston callipers
Rear: AP Racing 350mm vented discs with 4 piston callipers -
WRC style fly off hydraulic handbrake
HD widescreen multi page driver display
Infotainment system with Apple CarPlay™ and Android Auto™
Data logging capability
Bluetooth charging ports
Full electronic power management system
Lithium ion lightweight battery