Alfa Romeo TZ

Alfa Romeo Giulia TZ
1963 Alfa Romeo Giulia TZ
Overview
Manufacturer	Alfa Romeo
Also called	Alfa Romeo TZ
Production	1963–1967
Designer	Ercole Spada at Zagato (TZ1 and TZ2)
Body and chassis
Class	Sports car Racing car
Body style	2-door coupé
Layout	Front-engine, rear-wheel-drive
Powertrain
Engine	1.6 L DOHC I4
Transmission	5-speed manual
Dimensions
Wheelbase	2,200 mm (86.6 in)
Length	3,950 mm (155.5 in) TZ 3,680 mm (144.9 in) TZ2
Width	1,509 mm (59.4 in) TZ 1,600 mm (63.0 in) TZ2
Height	1,199 mm (47.2 in) TZ 1,020 mm (40.2 in) TZ2
Curb weight	660 kg (1,460 lb) (TZ) 620 kg (1,370 lb) (TZ2)
Chronology
Predecessor	Alfa Romeo Giulietta SZ
Successor	Alfa Romeo GTA Alfa Romeo Tipo 33

Alfa Romeo Zagato TZ3
A 2011 Alfa Romeo TZ3 Corsa
Overview
Manufacturer	Alfa Romeo
Also called	Alfa Romeo TZ3
Production	2011 (1 Corsa, 9 Stradales)
Designer	Norihiko Harada of Zagato
Body and chassis
Class	Sports car
Body style	2-door coupe
Layout	Front longitudinal mid-engine, rear-wheel drive
Related	Dodge Viper SRT-10
Powertrain
Engine	4.2L naturally-aspirated dry-sump lubricated 90-degree DOHC 4-valve V8 - Corsa 8.4L Viper naturally-aspirated all-aluminum 90-degree OHV 2-valve V10 - Stradale
Transmission	6-speed sequential - Corsa 6-speed Tremec TR6060 manual - Stradale
Dimensions
Wheelbase	2,500 mm (98 in) - Corsa 2,510 mm (99 in) - Stradale
Length	4,345 mm (171.1 in) - Corsa 4,459 mm (175.6 in) - Stradale
Width	1,200 mm (47 in) - Corsa 1,911 mm (75.2 in) - Stradale
Height	1,944 mm (76.5 in) - Corsa 1,210 mm (48 in) - Stradale
Curb weight	850 kg (1,870 lb) - Corsa 1,450 kg (3,200 lb) - Stradale

The Alfa Romeo Giulia TZ (also known as the Alfa Romeo TZ or Tubolare Zagato) was a sports car and racing car manufactured by Alfa Romeo from 1963 to 1967. It replaced the Giulietta SZ. In 2011, the name was reduced from Giulia TZ to TZ in the new TZ3 model.

The original TZ, currently sometimes referenced as TZ1 to differ from later TZ2, was developed in together with Autodelta, a company led by Ex-Ferrari engineer Carlo Chiti. It featured a 1,570 cc twin cam engine and other mechanical components shared with the Alfa Romeo Giulia and carried a 105 series chassis number, but was a purpose built sports racing car, with a tubular spaceframe chassis, light all-aluminium bodywork, disc brakes and independent suspension. The result was a lightweight coupé of only 650 kilograms (1,430 lb) and top speed of 134 miles per hour (216 km/h). The TZ was built both for street and racing trim, with the latest racing versions producing up to 160 brake horsepower (120 kW). Alfa's twin-spark cylinder head, as also used in the GTA, contributed to the speed of the TZ; the standard Giulia alloy block with wet steel liners was installed at an angle under the hood of the TZ to improve airflow.

Aiding the TZ in its quest for performance was the treatment of the rear bodywork. Incorporating the research of Dr. Wunibald Kamm, the TZ used a style called "coda tronca" in Italian, meaning "short tail.", otherwise known as the Kamm tail. The principle is that unless you are willing to incorporate an aircraft-like extended tail (not practical for an automobile), there is surprisingly little, if any, increase in drag and a marked decrease in lift or even some downforce by simply chopping off a portion of the tail. Zagato had previously proved the success of this tail treatment in their "coda tronca" Sprint Zagato sports-racing cars, and it was a natural evolution to adapt this to the Giulia TZ.