In the automotive industry, Japanese manufacturers have agreed that no standard vehicle would have more than 276 hp (206 kW; 280 CH); The agreement ended in 2005.  German manufacturers limit the maximum speed of high-performance sedans (berlines) and breaks to 250 km/h.   When the Suzuki Hayabusa motorcycle exceeded 310 km/h in 1999, fears of a European ban or regulatory intervention led Japanese and European manufacturers to limit to 300 km/h at the end of 1999 See list of the fastest series bikes. In Canada, a case of non-performance based on illegality is cited: Royal Bank of Canada v. Newell, 147 D.L.R (4.) 268 (N.S.C.A.), in which a woman forged her husband`s signature on 40 cheques worth more than $58,000. To protect them from prosecution, her husband signed a letter of intent from the bank, in which he agreed to assume “all responsibilities and responsibilities” for forged cheques. However, the agreement was unenforceable and was repressed by the courts because of its essential objective of “stifling criminal prosecution”. Due to the illegality of the contract and the cancelled status, the bank was forced to return the husband`s payments. A gentleman`s agreement, defined at the beginning of the 20th century as “an agreement between gentlemen who looks at price control,” has been described by one source as the most lax form of a “pool.”  Such agreements have been declared in all industrial sectors and are numerous in the steel and steel industry.  A gentlemen`s agreement or gentleman`s agreement is an informal and non-binding agreement between two or more parties.
It is usually oral, but it can be written or simply understood as part of a tacit agreement by convention or by mutually beneficial label. The essence of a gentlemen`s agreement is that it depends on the honour of the parties for its achievement, rather than being enforceable in one way or another. It differs from a legal agreement or a contract. If a contract is contrary to an illegal purpose or a public order, it is cancelled. In the Canadian case of the Royal Bank of Canada v. Newell, a woman falsified her husband`s signature and her husband agreed to assume “all responsibilities and responsibilities” for the falsified controls. The agreement was unenforceable, however, as it was intended to “stifle criminal prosecution” and the bank was forced to make the man`s payments. Each contracting party must be a “competent person” with the force of law. The parties may be individuals (“individuals”) or legal entities (“companies”). An agreement is reached if an “offer” is adopted. The parties must intend to be legally connected; and to be valid, the agreement must have both a correct “form” and a legitimate purpose. In England (and in jurisdictions using the principles of the English treaty), the parties must also exchange “counterparties” to create a “reciprocity of engagement,” as in Simpkins/Country.
 In addition, shareholder agreements often provide that the error is a misunderstanding of one or more contractors and can be invoked as a reason for cancelling the agreement.