WESTPORT — The fourth annual rally organized by the Westport Electric Car Club takes place Sunday.

The 35- to 40-mile event starts at noon at the Saugatuck Railroad Station. Driver check-in takes place at 11 a.m. at the waiting room on the New Haven-bound side of the station, which will be open at 10 a.m. for a continental breakfast.

The public is invited to view the EVs either at the pre-rally staging or at the finish line in Wilton. Among the electric vehicles scheduled to participate this year will be a Tesla Model X, Gen 2 Chevy Volt and Cadillac ELR.

The rally is for plug-in vehicles — fully electric, extended-range electric vehicle or plug-in hybrid. Participants do not have to be a club member or a resident of Westport. The entry form can be downloaded from the website, www.westportelectriccarclub.com, and the entry fee is $50 per vehicle.

The course details will remain secret until provided to the drivers when the check in for the rally, according to the event’s organizers.

Drivers are required to have a navigator, according to club officials, because the directions are considered too complicated to be handled by a driver alone. The club will help find a navigator for any driver who needs one.

The event is a rally, not a race, the club’s publicity stresses. The competition is based on coming as close as possible to the official mileage as determined by the rally-master, as long as the mileage is not below the official course length.

Prizes will be awarded to the winner and two runners-up. The rally officially concludes at 3 p.m., with winners will be announced at 3:15.