Sociedad Tramullas de Automóviles Rallye

 SA (Tramullas Rallye Automotive Company), also STAR, is an  in Ventora. The company is known for producing affordable and easily maintained vehicles, which largely explains their popularity. The company sells their cars under the STAR marque but they are commonly known as a "Trami", sometimes "Trammi", derived from Tramullas, the where the company was founded and maintains its headquarters and production facilities.

The cars have body panels over a steel frame. Permaplast is a fiber-reinforced plastic made predominantly with recycled fibers and waste resins. They have a transvers-mounted 900 cc or  powering the front-wheel drive. The two-stroke engine requires adding oil to the 25 l fuel at a 50:1 ratio but most filling stations in Ventora offer a pre-mixed fuel.

With a curb weight of about 650 kg, the cars can achieve fuel economies of 5.1 l/100 km (45 mpg) in compressed natural gas (CNG) models or 7 l/100 km (34 mpg) with engines. The cars have an average lifespan of 26 years and low purchase costs under 56,000 standards ($9,960), which helps explain the popularity of the cars.

Engines
Up until the 2000s, STAR engines have always been s using petrol in a 50:1 mix with oil. Beginning in 2012, STAR began work on a cleaner burning engine. The Commonweal Commission provided a research grant to assess lower emissions engines. STAR considered s. While compression-ignition engine technology was proven and a fueling infrastructure already existed, leading engineers felt CNG was the best solution. CNG represented a relatively easy modification to the engine. While STAR implied making CNG available at fueling stations was a simple task, it was more difficult than that, but major fuel suppliers stepped up to the task and since the mid-2010s, CNG has been readily available at many major fuel station outlets in the country.

Current models
Current models all feature CNG engines. They include:
 * 600&mdash;two-door hatchback, the company's most popular model
 * 600L Limusina&mdash;two-door sedan version, which is also very popular
 * 600C Cabriolé&mdash;two-door sporty convertable
 * 610U Utilidad&mdash;utility vehicle with no doors, capable of off-road usage

Motorsports
STAR contributes support to several teams in professional racing circuits as part of their marketing scheme. Despite the car's minimal power output, a number of amateur rallye clubs have also developed, although the company does not typically provide more than marketing giveaways such as key fobs and logo decals to such ventures.

Charitable endeavors
Every year in May STAR sells a limited number of tickets for people to drive a set number of laps around the company's rooftop test track. The company donates the proceeds to different charities selected for that year's event.