Walkinshaw & Ors v Diniz

A contractual performance warranty referring to a driver’s ranking in qualifying sessions is ordinarily construed by reference to actual results achieved by that driver, provided he drives to the best of his ability. The court should not replace that practical commercial test with theoretical simulations of the car’s capabilities or comparisons with a different driver. Ordinary racing variables are inherent in the agreed test and do not require an implied exception. If a party relies on exceptional external factors to avoid breach, those factors must be properly raised and proved. A side letter ancillary to a principal agreement generally terminates with it where the commercial scheme shows that the obligations were intended to be linked.

The claimants appealed from the judgment of Tomlinson J, reported at [2001] 1 Lloyd's Rep. 632, concerning the termination of an agreement under which Mr Diniz drove for the Arrows Formula One team during the 1998 and 1999 seasons.

The appeal concerned the construction of the team-performance warranty, the manner in which the agreement was terminated, damages, the survival of an ancillary sponsorship side letter, and refusal of permission to amend the claim to add damages for alleged poor driving. The central issues were whether the performance warranty depended on actual qualifying results or theoretical car capability, and whether the ancillary obligations survived termination.

1. Construction of clause 7.1. The appeal court preferred the construction adopted by Tomlinson J. The warranty was tested by Mr Diniz’s actual ranking among competing drivers in qualifying, not by the hypothetical performance of the car with a superior driver or by expert simulations. The implied qualification was that Mr Diniz drive to the best of his ability. The clause was a practical and commercially workable test, allowing for occasional mishaps because it applied to the required proportion of races rather than every race.
2. Common racing factors such as weather, tyres, set-up and another driver’s interference did not qualify the warranty. They were ordinary incidents of qualifying and the contract made no express provision for them. If the team sought to rely on an exceptional factor as relieving it from breach, the team had to raise and plead it and give the driver an opportunity to address it. That had not occurred.
3. Since the performance standard had not been met, Mr Diniz was entitled to rely on the contractual termination provision. The issues concerning repudiation and damages therefore became academic, and the court declined to consider further arguments on damages.
4. The sponsorship side letter was ancillary to the principal agreement. Its obligations were intended to end when the main agreement ended. The commercial structure, including clause 9.3, was inconsistent with a continuing obligation to provide sponsorship or pay its equivalent after termination.
5. The refusal to permit amendment was not vitiated by the judge’s comments concerning a possible fresh action and Henderson v Henderson. The judge’s decision rested on the overall circumstances, including the defendant’s legitimate expectation that the litigation would conclude, the claimants’ late conduct, and the prejudice caused by introducing a new damages claim at the final-speech stage.
6. The appeal, cross-appeals and respondent’s notice were dismissed with costs. The application to amend the grounds of appeal was allowed, an interim payment of £50,000 was ordered within 28 days, and leave to appeal to the House of Lords was refused.

• Court of Appeal (Civil Division): appeals from the Commercial Court judgment of Tomlinson J, reported at [2001] 1 Lloyd's Rep. 632, dismissed with costs.