As used car values soar, the old rules of how to get the best price still hold. Also, in the stock market, value stocks pull a rotation move on growth.    Keywords: Kiplinger, Your Money's Worth, used car deals, how to negotiate car prices, used car deals, Karl Brauer, iseecars, buying a used car for less, trade-in values   Kiplinger's Closing Bell newsletter https://my.kiplinger.com/generic/investing/t052-c000-s001-sign-up-for-the-closing-bell.html The 16 Best Value Stocks for the Rest of 2021 https://www.kiplinger.com/investing/stocks/value-stocks/602945/best-value-stocks-2021   10 Best Value ETFs to Buy for Bundled Bargains https://www.kiplinger.com/investing/etfs/602795/best-value-etfs-to-buy-bundled-bargains-2021   Karl Brauer on Twitter https://twitter.com/karlbrauer   Getting a Used Car Deal in a Tight Market https://www.kiplinger.com/personal-finance/shopping/cars/602652/getting-a-used-car-deal-in-a-tight-market