The midsized Cayenne is one of the sportiest, most responsive SUVs available. The V6 and eight-speed automatic work well together. A V6 diesel, V8, and hybrid engines are also available. The eight-speed automatic is supersmooth. The ride is supple and steady but rather stiff at low speeds. The seats are supportive and comfortable, and the cargo area is roomy enough. Interior fit and finish is impeccable, but the controls can be confusing. A plug-in hybrid is available, and has a 14-mile electric range. It takes two and a half hours to charge with a 240-volt connector. Reliability has been above average. The diesel version is among those under investigation by the EPA for not complying with emission regulations.