(FORTUNE Magazine) – SEEMS CBS star David Letterman (Mr. $42 Million) can't shake his love for fast driving. Letterman's friends worry he'll lose his license. Will CBS head Larry Tisch try to push a car and driver on Dave? It might be a midprice sedan, like thrifty Tisch favors . . . Did Insider rattle Dan Quayle? The ex-veep is one of six founders of Circle Investors, an Indianapolis financial services firm. The firm won't chat (''Our legal counsel has advised us to avoid having an article appear''), but they have said they're looking to buy life insurance companies . . . Christmas should be cheery at Davis Polk & Wardwell. A court has awarded the stuffy Manhattan law firm its final fees from the LTV bankruptcy -- a total of $41 million since 1986, with 17 partners billing at $450 an hour (that's each, honey) . . . In the multimedia merger game, Cap Cities/ABC intends to be a buyer, not a seller. Could take an old hand to manage that, so former CEO Tom Murphy is returning. Murphy, Cap Cities' first employee, stepped down as CEO in 1990 to let longtime sidekick Dan Burke have a go. Burke, 64, retires in February . . . Unconventional investing: Former pyramid-builder Don Parsons (an empire of 19 highly leveraged banks till regulators eased him out in 1970) is back. He gave money to the U. of Michigan biz school Office for the Study of Private Equity Finance . . . The Secret Service is mum, but it's rumored counterfeit $100 bills are circulating abroad. To cop a Saturday Night Live joke: Send suspect bills to Insider for instant verification . . . Candy heiress Jackie Mars Vogel's divorce should cause a stir. Hubby Hank, 66, a former bootmaker, wants access to financial records of supersecret Mars Inc. Hank claims the billionairess, 54, filed misleading prenuptials, stating her worth at only $25 million . . . Things ain't sweet for Nestle either. CEO Helmut Macher says U.S. candy consumption is down. A trade group says it's up. Is someone nibbling Nestle's market? An economic indicator, candy; we eat more of it in a recession.