Founded in 2005, 357 Golf Carts in Carlsbad's Aviara area builds custom golf carts from the frame up at its Las Palmas Drive workshop, stripping each chassis to bare metal before reassembly with client-selected components. The rebuild process covers drivetrain, suspension, body color, interior upholstery, and Bluetooth stereo integration on Club Car and EZGO platforms — the same controller-level electrical diagnostics that Carlsbad Auto Service applies to full-size vehicles on Tyler Street. As an authorized MadJax XSeries dealer, the shop stocks the manufacturer's three-year-warranty cart line alongside aftermarket lift kits, LED lighting packages, and lithium-ion battery conversions. Clients range from private homeowners in the Aviara and La Costa neighborhoods to commercial operators outfitting security and utility fleets across North County. Completed builds ship as far as Alaska through regional carriers, with local delivery and service-appointment pickup handled by North County Roadside Assistance & Towing for buyers within the San Diego metro. Highest-tier custom builds pair 48-volt AC drive systems rated for sustained 25-mph operation with 105Ah lithium-ion packs, heavy-duty rear leaf springs, and 14-inch forged aluminum wheels on DOT-rated radial tires.