Methanol can use existing gasoline infrastructure with only limited modifications.

The machines are allowed limited modifications.

To this end, the cars are production-based models built after 1964 with a reasonable amount of limited modifications.

In the interests of cost control, only very limited modifications are allowed to the cars.

Strict regulations allow only limited modifications and work on the sealed engines is limited to a single nominated engine builder.

Following the Court's decision, Owen initially made an unsuccessful attempt to pass the legislation again with limited modification.

Environmentalists and auto makers generally support the plan while seeking limited modifications.

The engine is standard with limited modification allowed (rebored +60 etc.).

Prior to 2012, engines of up to 2000 cc were allowed, with only limited modifications from standard engines.

Two sets of necessary but very limited modifications are therefore proposed to solve these two technical problems.