The original Delta improved by today's knowledge and materials.

A technical rebuild

The love for the Lancia Delta excelled since the first Group A rally victories were recorded. Sales accelerated and the affection for Lancia’s five-door hatchback continued to grow. After the WRC successes and the official production stop in 1994, the Delta was overtaken by time, but not forgotten.

Unfortunately, the upkeep and running costs of the Delta Integrale turned out to be above average, causing for the widely ranging conditions in which they can be found today. The Maturo Classic specification eliminates the known weaknesses, upgrades the technical aspects and exceeds the expectations of owning a 30-year-old Italian car.

In short, the Maturo Classic spec is a Delta made more reliable, robust and competent without any visual changes. Offering future driving pleasure, without past technical failures.

Upgrade options

The Maturo Classic specification is available in three different trim levels since every Delta owner has different wishes and purposes for their car. The levels range from an incredibly robust and reliable Delta Integrale to an extremely fast Delta with technical features derived directly from our Rally and Stradale specifications program. Each level comes with a power increase compared to the original Lancia Delta Integrale. If you are interested and would like to know more about the Maturo Classic specifications, please do not hesitate to contact us.

In short
  • Basic Upgrade Package | 230 hp and 330
  • Performance Package | 290 hp and 400 Nm
  • Ultimate Performance Package | 340 hp and 450 Nm 


The chassis of the Lancia Delta was not specifically designed to cope with the forces of a 200hp engine combined with the superb grip levels achieved by the four-wheel drive system. This causes the chassis to flex, twist and eventually show cracks. Every Maturo spec is inspected on chassis damages, repaired and strengthened at key weak points with hardened Domex plating.

  • A full chassis rebuild can be offered, welding through over 250+ points. This is directly carried over from Maturo’s Stradale / Rally program. Mandatory when opting for the "Ultimate Upgrade Package" spec


The marvelous Lampredi designed 2-liter, 4-cylinder engine has proven to be competitive in the world of rallying fast and quite durable. However problems like engine lubrication, timing belt malfunction, oil leakages are not uncommon, unfortunately. Every Maturo Classic spec
gets a fully rebuilt engine upgraded parts such as a reinforced timing belt, modern ECU and improved oil distribution. Optionally, things like forged pistons, steel conrods, upgraded lower block can all be specified to increase performance.

Key specs
  • Improved power output of at least 230 hp, smoother delivery. (290 hp and 340 hp available)
  • Redesigned original Turbo from Maturo’s Stradale / Rally program and stainless steel exhaust.
  • Modern injection, motorsport ECU, new wiring harness


The original Lancia manual transmission has never been a strong feature. The gearbox was fundamentally too weak to cope with the forces that went through it. Therefore, the basic Maturo Classic spec receives a rebuilt gearbox with upgraded bearings, seals and an upgraded clutch. Optionally, a strengthened Group N spec gearbox can be fitted. This entails a stronger gearbox housing, lighter flywheel, high torque clutch, improved gearbox axles and an upgraded visco clutch.

Key specs
  • Improved internal materials
  • Enhanced durability
  • Tested to withstand greater engine power output (Group N spec)


The most iconic feature of every Lancia Delta Integrale is undoubtedly its 4-wheel drive system, providing excellent grip in any circumstance. The basic Maturo Classic spec receives fully rebuilt differentials with upgraded bearings, seals and rebuilt driveshaft and prop shaft. All parts are sandblasted and powder coated. Optionally, high performance driveshafts can be fitted with plated front and rear limited slip differentials along with other upgrades.

Key specs
  • Fully rebuilt differentials front and rear with upgraded bearings, drive shafts and CV-joints.
  • Upgraded viscous center differential
  • Optional, Stradale / Rally program differential shafts and differentials can be fitted.

Braking System

For the basic Maturo Classic specification the original brake set up is fully rebuilt with specifically upgraded parts for improved stopping power and higher reliability. The appearance of the brakes is unaltered, the performance enhanced. This is perfectly in line with the Maturo Classic philosophy. However, for those who demand more, bigger 335mm front and 272mm rear brakes are available with racing pads, perforated discs and stronger callipers.

Key specs
  • New Brembo discs and improved brake pads with new master cylinder and new brake lines
  • Upgraded brake calipers front and rear with improved pistons en new type seals
  • Optionally a high performance braking system can be specified for tremendous stopping power


The original suspension set up has always been a pleasant blend between sporty and relatively comfortable. Therefore, the basic Maturo Classic spec receives a rebuilt original suspension set up receiving multiple upgrades that improve on the established handling characteristics and more importantly, enhance its durability. Optionally, a high performance electronically controlled suspension set up can be fitted for improved cornering and absorption ability.

Key specs
  • New shock absorbers and new springs
  • Upgraded polyurethane suspension bush set
  • Completely rebuilt steering rack


The Maturo Classics are untouched in terms of design and materials. However, if wished for by the client, every detail can be restored to near new condition. Where necessary (new) OEM parts can be used to bring the interior back to its factory standard.

  • In consultation with the client, the interior cabin can be fully or partially re-upholstered. This enables one to choose alternative upholstery materials and colors, providing unique combinations with an increased level of comfort and luxury.