1999-2006 Audi TT review
The production model (internal designation Typ 8N) was launched as a coup? in September 1998, followed by a roadster in August 1999, based on the Volkswagen A platform used for the Volkswagen Golf, Skoda Octavia and others. Styling wise, it differed little from the concept, except for slightly reprofiled bumpers and the addition of rear quarterlight windows behind the doors. Mechanically, the TT uses a transversely mounted engine with front or quattro all wheel drive. It was first available with a 1.8 L turbocharged inline four cylinder 20-valve engine. with either 180 PS (132 kW) or 225 PS (165 kW). The engines share the same basic design but the 225 PS version features a larger turbocharger, an additional intercooler on the driver's side, forged connecting rods, a dual exhaust, and a few other internals designed to accommodate the increase in turbo boost from roughly 10 psi peak to 15. Quattro was optional on the small engine, and standard on the more powerful 225 PS version.