"WSL would guarantee DPL car parking on the site known as "the Sunday Market Site" (which site is shown tinted blue on the plan at annex 5 to this statement of case) for 3 days in each year for the premier motorsports event held at Donington Park each year at a fee of£30,000 per annum (subject to the same terms and conditions as the existing rent paid under the Lease), this arrangement running from 2004 and thereafter for each year of the term of the Lease. However, this arrangement was subject to the proviso that if DPE or WSL should require the SMS for further development at some future time, then DPL would agree to exchange it for suitable and similar land at a suitably appropriate location at no cost to it (except that DPL would retain an ongoing liability for payment of the annual fee in respect of such alternative site)"
"When it implies a term in a contract the court is sometimes laying down a general rule that in all contracts of a certain type – sale of goods, master and servant, landlord and tenant and so on – some provision is to be implied unless the parties have expressly excluded it. In deciding whether or not to lay down such a prima facie rule the court will naturally ask itself whether in the general run of such cases the term in question would be one which it would be reasonable to insert. sometimes, however, there is no question of laying down any prima facie rule applicable to all cases of a defined type but what the court is being in effect asked to do is to rectify a particular – often a very detailed – contract by inserting in it a term which the parties have not expressed. Here it is not enough for the court to say that the suggested term is a reasonable one the presence of which would make the contract a better or fairer one; it must be able to say that the insertion of the term is necessary to give – as it is put – "business efficacy" to the contract and that if its absence had been pointed out at the time both parties – assuming them to have been reasonable men – would have agreed without hesitation to its insertion."
"An unexpressed term can be implied if and only if the court finds that the parties must have intended that term to form part of their contract; it is not enough for the court to find that such a term would have been adopted by the parties as reasonable men if it had been suggested to them: it must have been a term that went without saying, a term necessary to give business efficacy to the contract, a term which though tacit, formed part of the contract which the parties made for themselves."