Pedzisa mutsara unotevera: Zviratidziro izvi zvakamuona achisayina neTyrrell Racing. Akanga ari nguva dzose pfungwa-scorer pamusoro pemwaka miviri nechikwata, nemigumisiro yake yakanakisisa iri nzvimbo mbiri dzechitatu, dzakawanikwa pa
1979 South African Grand Prix uye 1979 British Grand Prix.