1999 00 01 02 03 2004 Ford Mustang Seat Belts - Front Convertible on 2040-parts.com

Hood-ornament quiz--the answers

Were you able to separate the Cadillac from the Packard in our hood-ornaments challenge in the April 5 issue of AutoWeek? We wanted to know whether you could identify eight classic cars solely by their hood ornaments. Here's the place to confirm your car-knowledge prowess, or to recalibrate your hood-ornament history.

Concept Car of the Week: Alfa Romeo Giulia 1600 Sport (1965)

Autodelta produced 112 Alfa Romeo TZs between 1963 and 1965. The TZ abbreviation – for Tubulare Zagato – refers to the innovative lightweight spaceframe chassis that kept the weight at an impressive 660kg and assured great performance both on the road and on the track. Out of those desirable TZs, Zagato bodied the vast majority but two of the chassis were also handed to rival carrozzerias Bertone and Pininfarina.

$4 gasoline fuels surge in March sales

It feels counterintuitive. Expensive gasoline not only helped propel new-vehicle sales in the first quarter. It was a key factor in the surge.