Although the XT was available with a turbocharged engine, performance from the 111 hp (83 kW) powerplant wasn't very competitive internationally.
In 1987, Subaru introduced the XT6 as a 1988 model with the 145 hp (108 kW) 2.7 L flat-six ER27.
The XT6 received additional upgrades, including heavier suspension to handle the larger engine and 5-bolt hubs and wheels to accommodate the extra torque.

The XT6 was also fitted with a unique Cybrid adaptive electrohydraulic steering system that changed the level of assistance based on the vehicle's speed.
 This system did not use a conventional belt-driven power steering pump, freeing up much-needed space in the XT6's already cramped engine bay.
The Cybrid system also uses hydraulic fluid that is incompatible with conventional power steering fluid (which is usually automatic transmission fluid).
 This fluid is still available directly from Subaru at a significant premium over more common types of hydraulic fluid.

The XT6 has two electric fans to also help performance, compared to one electric fan and one belt driven fan on all other XTs.
With these changes, the XT6 was given a higher amp alternator.

The XT6 was not available with the digital instrument cluster of the turbo XT models.

In the Japanese market, the XT6 was sold as the Alcyone VX.
No front wheel drive Alcyone VXs were ever sold in Japan, and virtually no XT6s were sold in New Zealand.
 At least one example of an XT6, sold in New Zealand as the "Vortex ZZ6", is still on the road today.
 Subaru New Zealand did however bring in an XT6 as a demo, but as New Zealand's fuel options were 91 octane unleaded fuel or 96 octane leaded fuel, it was not a viable option to sell the XT6 as the 2700 cc 6 Cyl engine required 96 octane unleaded petrol.

Both the regular XT and the XT6 were discontinued after 1991 and were replaced by the much larger Subaru Alcyone SVX.
The SVX continued the tradition of surprising gadgetry in a sporty coupe, albeit in a much heavier and more powerful package.

The Subaru XT Turbo was dubbed as the official car for the Most Valuable Player for Super Bowl XXII presented by SPORT magazine in 1988, eventually won by Washington Redskins  quarterback Doug Williams, and The Subaru XT6 was dubbed as the official car for the Most Valuable Player for Super Bowl XXIII in 1989, eventually won by San Francisco 49ers wide receiver Jerry Rice.
Although the XT was available with a turbocharged engine, performance from the 111 hp (83 kW) powerplant wasn't very competitive internationally. In 1987, Subaru introduced the XT6 as a 1988 model with the 145 hp (108 kW) 2.7 L flat-six ER27. The XT6 received additional upgrades, including heavier suspension to handle the larger engine and 5-bolt hubs and wheels to accommodate the extra torque.
The XT6 was also fitted with a unique Cybrid adaptive electrohydraulic steering system that changed the level of assistance based on the vehicle's speed.  This system did not use a conventional belt-driven power steering pump, freeing up much-needed space in the XT6's already cramped engine bay. The Cybrid system also uses hydraulic fluid that is incompatible with conventional power steering fluid (which is usually automatic transmission fluid).  This fluid is still available directly from Subaru at a significant premium over more common types of hydraulic fluid.
The XT6 has two electric fans to also help performance, compared to one electric fan and one belt driven fan on all other XTs. With these changes, the XT6 was given a higher amp alternator.
The XT6 was not available with the digital instrument cluster of the turbo XT models.
In the Japanese market, the XT6 was sold as the Alcyone VX. No front wheel drive Alcyone VXs were ever sold in Japan, and virtually no XT6s were sold in New Zealand.  At least one example of an XT6, sold in New Zealand as the "Vortex ZZ6", is still on the road today.  Subaru New Zealand did however bring in an XT6 as a demo, but as New Zealand's fuel options were 91 octane unleaded fuel or 96 octane leaded fuel, it was not a viable option to sell the XT6 as the 2700 cc 6 Cyl engine required 96 octane unleaded petrol.
Both the regular XT and the XT6 were discontinued after 1991 and were replaced by the much larger Subaru Alcyone SVX. The SVX continued the tradition of surprising gadgetry in a sporty coupe, albeit in a much heavier and more powerful package.
The Subaru XT Turbo was dubbed as the official car for the Most Valuable Player for Super Bowl XXII presented by SPORT magazine in 1988, eventually won by Washington Redskins  quarterback Doug Williams, and The Subaru XT6 was dubbed as the official car for the Most Valuable Player for Super Bowl XXIII in 1989, eventually won by San Francisco 49ers wide receiver Jerry Rice.
Subaru XT