What is the requirement of exigent circumstances for a search of the trunk of a car in search of a suspect's vehicle?

As to the requirement of exigent circumstances, I find the record replete with reasons why guarding the car while sending an officer to seek a warrant would have been a dangerously impractical course. (People v. Dumas (1973) 9 Cal.3d 871, 884, 109 Cal.Rptr. 304, 512 P.2d 1208.)

I also find myself persuaded that no greater intrusion results from the search of the trunk under these circumstances than would be the case if the car had been impounded, towed and later searched. (Chambers v. Maroney (1970) 399 U.S. 42, 51-52, 90 S.Ct. 1975, 1981-1982, 26 L.Ed.2d 419.)