The first Evolution cars were built at the end of 1991 and through 1992, these were to be the final Homologation cars for the Rally Team, the Catalytic Evolution II was never to be rallied by the Factory.

1991 October -Debut of a new phase in the career of the HF Integrale :
Evolution. Wider wheel arches because of the wider tracks. New front suspension and several improvements to the rear suspension as well. More robust braking system and steering box. The power output was up to 210 bhp and performance achieved a major leap forward in terms of driveability, roadholding and active safety.

In order to improve the handling, the vehicles had a wider track front and rear, to enclose this track in the bodywork the wide arches were extended even further, in the process they also became more rounded and the wings were made in a single pressing, previously they had been fabricated. The front strut top mounts were also raised in the quest for more grip this then required a front strut brace to control the forces thus generated.

External changes included: new grilles in the front bumper to improve the air intake for engine compartment cooling, the bonnet was also redesigned and new lateral air slats assisted this better ventilation. An adjustable roof spoiler was added above the tailgate to assist in competition and to emphasise the cars sporty lines. New 5 bolt wheels derived from the rally cars were added, these are stronger than the previous wheels. Finally the rear view of the car changed with only one exhaust pipe now showing.

The chassis also makes no changes to a tried and trusted configuration: -

• MacPherson-type independent suspension at front with lower wishbones
• anti-roll bar
• segmented dampers and connection rod between the two domes
• MacPherson-type independent suspension at rear with transverse rods
• longitudinal transversal reaction struts
• roll bar and segmented dampers
• 4 disc brakes with double cylinder calipers at front
• floating calipers at rear
• split crossover hydraulic circuit with power brake and brake power modulator
      on rear wheels
• standard ABS
• rack and pinion steering with servo.
  
  The new Integrale retained the four wheel drive layout: - epicyclic centre diff with torque splitter (47% to front, 53% to rear) and Ferguson viscous coupling, - Torsen rear differential.
  
  The engine though technically the same 16V, was remapped to give 210 bhp at 5750 rpm to compensate for the cars slight increase in weight and frontal area, this kept the performance figures virtually unchanged
  
  The above improvements were aimed at and did change the cars' handling potential, the car was able to travel 5-6% faster on the rally sections, both on tarmac and gravel and thus, give even greater confidence to the driver when driven in normal road conditions.
  
  Interior trim was now Grey Alcantara as standard covering the same Recaro seats as in the 16V cars, Leather and Air Conditioning was offered, as an option. The interior was finished with a new anotomic grip gear lever and leather covered Momo steering wheel.
  
  There were a number of these cars built to meet Swiss regulations that were equipped with an 8valve catalytic engine giving 165bhp, they are a little underpowered for weight of the car.
  
  
  
  The Delta HF Integrale Evolution II
  Environment-friendly with even better performance
  June 1993 - The 1993 edition of the Delta HF integrale features an updated version of the 2-litre 16-valve turbo engine that now boasts extra power, as well as a three-way catalyst and Lambda probe. The addition of a catalyst has done nothing to penalise performance. Indeed, this new version delivers even more power and torque than its predecessor, with power output raised to 215 bhp.
  This was to be the last of the range with a number of Special Edition cars to celebrate the success of the vehicle; Gialla, Blue Lagos, Pearl White, Dealer Edition and the Final Edition. Production ceased in November 1994 and the series thus became finite.That's because Lancia added a series of technical improvements that may be summed up as follows, .:
  
  A Marelli integrated engine control system with an 8 MHZ clock frequency which incorporates:
• timed sequential multipoint injection,
• self-adapting injection times,
• automatic idling control,
• engine protection strategies depending on the temperature of intaken air.
• Mapped ignition with two double outlet coils
• Three-way catalyst and pre-catalyst with Lambda probe on the turbine outlet link
• Anti-evaporation system with air line for canister flushing optimised for the turbo
      engine
• New Grarrett turbocharger: water-cooled with boost-drive management i.e. boost
      controlled by feedback from the central control unit on the basis of rev/throttle angle
      mapping designed for ultra-progressive response to acceleration.
• Knock control by engine block sensor and new signal handling software that acts
      simultaneously on spark advance, fuel quantity injected and turbocharging.
  
  Naturally, the basic engine structure remains unchanged:
• twin counter-rotating balancer shafts,
• light alloy cylinder heads,
• twin overhead camshafts driven by toothed belt,
• four valves per cylinder.
  
  
  The engine develops a maximum power output of 215 bhp DIN (against 210 on the earlier uncatalysed version and a maximum torque of 32 kgm (formerly 31 kgm).
  
  In order to underline the even more advanced engineering and performance of the 1993 version, the new Integrale was also given a cosmetic and functional facelift.
  Briefly:
  
• new 16" light alloy rims with 205/45 ZR 16 tyres for better brake cooling and enhanced dynamic vehicle behaviour especially in lateral roadholding terms;
• body colour roof moulding to underline the connection between the roof and the Solar control windows;
• red-painted cylinder head.
  
  Inside:
  
• new leather-covered three-spoke steering wheel;
• standard Recaro seats upholstered in beige Alcantara with diagonal stitching.
  
  The sporty look of the new Delta is highlighted by the aluminium fuel cap and the air-intake grilles on the front mudguards which now serve as a more efficient 'air exhaust'.
  
  Standard equipment also includes:
• ABS
• Air conditioner
• Headlight beam adjustment.
• Foglights
  
  
  
  
  The Special Edition Cars
  
  Club Italia
  15 Evolution I cars (No.16 exists In Japan but there was no No.13 built)
  These cars were built for members of the Club Italia In 1992, Lord Blue in colour, 15 inch wheels, push button starting, big Recaro seats as fitted to Evo II cars, finished in Red Leather. Club Italia badges on both front wings, a plaque engraved with the name of the original owner under the bonnet, next to the offside hinge, the limited edition badge is below the gear lever, the cam covers are painted in Yellow with a Blue centre stripe and Club Italia was written on the bonnet front edge and the rear wing.
  
  
  Martini 5 ( evo 1 )
  January 1992 - To celebrate its victory in the 1991 World Rally Constructors' Championship, Lancia launched a special series of 400 Delta HF Integrale the '5' cars. The mechanicals were unchanged but the '5' was distinguished by personalised bodywork, white wheel rims, the Martini-Racing colours adorning the sides, the black bonnet grilles and the black spoiler on the back. Inside: special Recaro seats, black Alcantara upholstery with red stitching and red seat belts. The car was fitted with White 15 inch wheels. Each car in this series was numbered on a silver plate on the transmission console.
  
  
  
  Verde York ( evo 1 )
  200 Evolution I cars built in 1992, painted In York Green, 15 inch wheels, big Recaro seats as fitted to Evo II cars, finished in Beige Leather, with World Rally Champion badge on the tailgate.
  
  Martini 6 ( evo 1 )
  November 1992 - Sixth consecutive World Rally title for the Delta W Integrale. To celebrate its 1992 victory, Lancia again launched a new special series of 310 carsbuilt 1992-93. The Lancia Delta HF Integrale'6' featured white paintwork with a Martini-Racing strip along the sides. Inside, the seats were again Recaro but the red-stitched Alcantara upholstery was turquoise, with the HF logo on the head restraints.World rally Champion dacals on both front doors with a Martini Racing decal on the rear spoiler and a 6 World Rally Champion badge on the rear door. It was equipped with white 15 inch wheels. Here too, each car had a number which appeared on the aluminium plate on the transmission console.
  
  Bianco Perlato
  385 Evolution II cars were built in 1993-94, painted in Pearl White and a Grey coachline, Blue Leather interior including the steering wheel with an Edition plaque below the gear lever.
  
  Giallo
  220 Evolution II cars were built in 1993-94, the car was finished in the bright Yellow with Black Alcantara seats.
  
  
  Blu Lagos
  215 Evolution II cars were built in 1993-94, painted in metallic Lagos Blue with and a yellow coach line, Cream leather interior with Edition plaque by the gear lever.
  
  
  Dealers Collection
  180 Evolution II cars built in 1994, these were some of the last cars to be built. The colour is a metallic Candy Red, with a Tan leather interior. There are Rally style controls, navigators foot rest, push button starter and the Edition plaque by the gear lever.
  
  Final Edition
  250 Evolution II cars built in 1994 for the Japanese market alongside the dealers collection cars at the end of the production run. Painted a Candy Red, with the Blue and Yellow rally stripe down the roof and bonnet, the bonnet louvres were in Black and the front grill was of mesh. The seats were Tan Alcantara with cloth centre panels, the instruments were set in a silver surround, there was a Navigator's foot rest together with rally style pedals and a push button starter. The Edition plaque with the car number was below the gear lever.
  
  
  Other special Integrales built include 15 Lancia Club cars and 20 Club Hi-Fi, these cars were Evolution IIs finished in Red or dark Blue with leather interiors. Apart from these there were a number of one off colours produced for appraisal purposes as well as some cars with 'attitude" for the Agnelli family. With thanks to John Whalley Ltd