General Motors is making monthly rentals part of its Maven car-sharing program. Starting now in San Francisco and Los Angeles, members of the app-based mobility service can book a Chevrolet Volt extended-range hybrid or a Chevrolet Tahoe SUV for 28-day blocks of time. Soon, GM plans to roll out this long-term rental service, called Maven Reserve, in more markets. 
The year-old mobility brand is more closely associated with hourly and daily rentals in the 17 cities in which it operates. Maven?s data showed that users in San Francisco and Los Angeles often need longer-term rentals for short-term stays in those areas associated with work.
?The service was developed initially for entertainment and entrepreneurial communities seeking frictionless, on-demand transportation options and longer-term access to vehicles,? a Maven spokesperson said. ?It?s a huge opportunity for us and comes from listening to our customers.?
Users will pay $1100 per month for the Volt and $1500 per month for the Tahoe, and those prices come with a $100 gas card, insurance, and dedicated parking spots.
Those prices are on par with costs for rental cars in these two areas, but the legacy car-rental firms don?t include the same perks. For two examples, a cursory search for 28-day rentals from traditional car-rental companies shows Hertz charging $1483 for a Toyota 4Runner or similar SUV in Los Angeles and Dollar asking $1334 for a month in a Chevrolet Spark in San Francisco.
The advent of ride-sharing s...